Users Discussion Board

aman to Pranati Kundu 10 years ago

A and B together Complete the work In 10 days and B and C together Complete the work in 8 days. If B is 20 % more efficient then C. Then in how many days will A and C together will complete the same work?

Reply Like? Yes | No

Devendra Marghade 10 years ago

11 11/39 days

(1/A)+(1/B)=1/10 ----(i) & (1/B)+(1/C)=1/8 ---(ii)
Subtracting (i) from (ii), (1/C) - (1/A) = 1/40
Given B is 20% more efficient than C, So 1/B= (1/C)*(120/100)=6/(5C) ---(iii)
Substituting this value of 1/B or 1/C from (iii) in (ii), 1/C=5/88 and 1/B=3/44
Substituting value of 1/B in (i), we have 1/A = 7/220
1 day work of A & C= (7/220)+(5/88)=39/440
So A & C together can complete the work in 440/39 or 11 11/39 days

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Avinash Bunkar 10 years ago

LET SOLVE THIS PUZZLE BY UNITARY METHOD-
GIVEN THAT A+B COMPLETE IN 10 DAYS AND B+C COMPLETE IN 8 DAYS
LET US SUPPOSE WORK IS OF 40 UNITS(WHICH IS NOTHING BUT THE LCM OF 10 ND 8)
IF A ND B CMPLT IN 8 DAYS
THERFR THERE 1 DAY WORK=TOTAL WORK / TOTAL DAYS
40/10 = 4 UNITS
AND B+C 1 DAY WORK = 40/8 = 5 UNITS
AND B IS 20 PRCNT MORE EFFICIENT WHICH MEAN 1/5 OF C
B+C = 5 UNITS(1 DAY WORK)
C*1/5 + C = 5
C= 25/11 (1 DAY WORK)
THRFR B = 5- 25/11 = 30/11 (WHICH IS B 1 DAY WORK)
AND U CAN EASILY CALCULATE A FROM
A+B = 4 UNITS
A=4 -30/11 = 14/11 (WHICH IS 1 DAY UNIT WRK)
THRFR A+C = 14/11 + 25/11 = 39/11
THERFORE TO CPMPLT 40 UNITS A AND C MUST WORK FOR = 40/( 39/11) = 11 DAYS (APPROX)

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DANA DAYANA 10 years ago

hi m4maths.com frnds

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SHAKE MAHAMAD GOUSE 10 years ago

hi welcome to m4 maths

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saragadam indira 10 years ago

hai sir how are u?

Reply Like? Yes (1) | No (1)

deepak sharma to Gopesh Kumar Pandey 10 years ago

hello sir......how are you ?

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bavinash 10 years ago

Time Distance and Speed
Hemant and Ajay start a two-length swimming race at the same moment but from opposite ends of the pool. They swim in lane and at uniform speed, but Hemant is faster than Ajay.They first pass at a point 18.5 m from the deep end and having completed one length, each one is allowed to rest on the edge for exactly 45 seconds.After setting off on the return length, the swimmers pass for the second time just 10.5 m from the shallow end.How long is the pool?

Options:
a.55.5m, b.45m, c.66m, d.49m.

Reply Like? Yes (11) | No

lokesh 10 years ago

length of the pool is 45 m

Like? Yes (1) | No

Nainsi kala 10 years ago

Len the pool is 45 m

Like? Yes (1) | No

lokesh 10 years ago

check for solution http://www.lokesh.byethost22.com/solutions/sol2.html

Like? Yes (8) | No

vikaskumar jaisal to mohita verma 10 years ago

hi mohita
Do you tell me how I would Improve my thinking power

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aman to RAKESH 10 years ago

A and B complete the work in 10 days and B and C complete the same work in 8 days. B is 20% more efficient then C . then A and C can complete the same work in how many days?

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rishu 10 years ago

Subhash can copy 50 pages in 10 hours.Subhash and prakash together can copy 300 pagin in 40hours .in how much time can prakash copy 30 pages

Reply Like? Yes (1) | No

aman 10 years ago

for subhash i am using s and for prakash i am using p
s complete 50 pg in 10 hr
so s complete 1 page in 1/5 hr

s+p together compete 300 pg in 40 hr
so s+p together complete 1 pg in 2/15 hr

rate = 1/days
let p complete 1pg in x hr
in context of rate:rate for s=5,p=1/x and s+p=15/2

5 + 1/x = 15/2
x=2/5hr so p complete 1 pg in 2/5 hr
so for 30 pg he will take 12 hr

Like? Yes (3) | No (3)

rishu 10 years ago

20 Workers can finish a piece of work in 30days .after how many days shud 5workers leave the job so that the work is completed in 35 days .please solve this question

Reply Like? Yes (1) | No

lokesh 10 years ago

after 15 days they should leave

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lokesh 10 years ago

for solution check http://www.lokesh.byethost22.com/solutions/sol1.html

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SATHYARAJ 10 years ago

From a square of side 2cm equal triangle is cut from it corners to form a regular octagon. We will get an octagon. What is the area of that octagon?
a) 4(sqrt 2)+8 b) 8(sqrt 2)-8 c) 2(sqrt 2)+8 d) 8(sqrt 2)+4

Reply Like? Yes | No

neha gupta 10 years ago

8(sqrt 2)-8 This is the answer

Let the side of equal triangles be x cm
Each interior angle of a regular octagon is 6*180/8=135
Therefore interior angle of triangle is 45
And thus in triangle AEL length of hypotenuse is
LE=(x^2 + x^2)^(1/2)=(2x^2)^(1/2)=x(2)^(1/2)
Area of octagon=2*area of trapezium KLEJ + area of rectangle EFIJ
2*(1/2)*(2-2x+2)*(x) + (2-2x)*2
=4x-2x^2+4-4*x
=4-2x^2
As octagon is regular therefore:
2-2x= x(2)^(1/2)
X=2/(2+2^(1/2))
On rationalizing we get x=2-2^(1/2)
Putting it in area of octagon expression we get
4-2(2-2^(1/2)^2
4-8-4+8(2)^(1/2)
8(2)^(1/2)-8 ans

Like? Yes (1) | No

neha gupta 10 years ago

Figure cannot be uploaded Square is ABCD and octagon is EFGHIJKL

Like? Yes | No

Avinash Bunkar 10 years ago

Q.Kalmadi can build a stadium in 14 days, while Raja can do the same in 21 days. They started working together.*.Case #1: 3 days before the completion of work, Kalmadi was sent to Tihad jail. So find out Total Number of days to complete the work?*.Case #2: Same question but Raja goes to jail.

Reply Like? Yes | No

Devendra Marghade 10 years ago

1. 15/2
2. 5

1 day work (1/14)+(1/21)=5/42, so expected days needed to complete the work=42/5
3 days before the completion of work=(42/5) - 3=27/5 days, Remaining work=1 -(5/42)*(27/5)=5/14
Case#1: Days required to complete the remaining work=(5/14)/(1/21)=15/2
Case#2: Days required to complete the remaining work=(5/14)/(1/14)=5

Like? Yes | No (1)

rishu 10 years ago

If 2

Reply Like? Yes (1) | No

harsh shah 10 years ago

137+276=435 how much is 731+672?

Reply Like? Yes | No

neha gupta 10 years ago

7+6=5,3+7=3,2+1=4 therefore 731+672= 534

Like? Yes (1) | No

arnav singh 10 years ago

2 candidate contested in an election.the candidate who got 45% of votes was defeated by 321 votes.find the total no of votes polled if no votes were invalid

Reply Like? Yes (4) | No (4)

DEBASMITA PAUL 10 years ago

total no. of votes polled=3210 because
B got 45% then A got 55%
the difference is 10%
10%=321
then 100%=3210

Like? Yes (5) | No (2)

chandini vadada 10 years ago

55% of votes -44% of votes = 321
10% = 321
total votes =3210

Like? Yes | No (1)

rupavathi 10 years ago

there are 5 red 5 green 5 black balls in a bag if 2 balls are drawn at random what is the probability that at least one is green

Reply Like? Yes | No

harsh shah 10 years ago

(10c1*5c1+5c2)/15c2 =60/105

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rupavathi 10 years ago

A person buys a product ans sells at a discount of 20% which leads to a loss of 10% if the MRP of the product is 4800 what % should be discounted from the MRP by the person to gain a profit of Rs 440

Reply Like? Yes | No

amrita 10 years ago

A contractor undertake a contract to make a canal of 12 km long in 350 days with the 45 men (employee). after 200 days he found that only 4.5 km canal has been constructed .find the no. of extra men required to finish the contract on time.

Reply Like? Yes (23) | No

vivek kr. chatterjee 10 years ago

45 men worked for 200days to make 4.5 km canal,
so 45*200 = 9000 man working days made 4.5 km canal
so, 1 man working day = 4.5/9000 km canal

remaining days = 350-200 = 150days
remaining work = 12-4.5 = 7.5km

4.5 km canal is made in 9000 days by 1 labour
so, 7.5 km canal is made in 9000 days by 7.5/4.5 labour
so, 7.5 km canal is made in 150 days by (7.5*150)/ 4.5 labours = 250

so extra labours required = 250-45 = 205 ans

Like? Yes (6) | No (31)

chandini vadada 10 years ago

4.5 km in 200 days by 45 men
now remaining 7.5 km in 150 days by 45+x men
200*45/4.5 =(45+x)*150/7.5
on solving this we get x=55 so 55 men extra are required

Like? Yes (36) | No (2)

k sureshbabu to RAKESH 10 years ago

hi rakesh i hope u r the best mathamatetion. all the best to u r bright future.

Reply Like? Yes (1) | No

Vishwas Srivastava to khushboo 10 years ago

Can you tell me how to prepare for elitmus?

Reply Like? Yes | No

chitra 10 years ago

x% of y is y% of what....???

Reply Like? Yes | No

Devendra Marghade 10 years ago

Ans=x

(x/100)*y= (y/100)*x
So x% of y is y% of x

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chitra 10 years ago

thank you dev

Like? Yes | No

swarupa nuggu to RAKESH 10 years ago

hey totally how many parker pens u got till now?

Reply Like? Yes (1) | No

RAKESH 10 years ago

for the last 8 times of my weekly winner prizes, i received only one parker pen.

Like? Yes (3) | No

RAWINDRA 10 years ago

guys i am 2014 passout...did not get job yet please tell me the name of mnc which will hire 2014 batch as well.

Reply Like? Yes | No

SATHYARAJ 10 years ago

. Two vehicles A and B leave from city Y to city X, A overtakes B at 10.30 a.m. and reaches city X at 12.00 p.m. It waits for 2 hrs and returns to city Y. On its way, it meets B at 3.00 p.m. and reaches city Y at 5.00 p.m. B reaches city X, waits for 1 hr and returns o city Y. After how many hours will B reach city Y from the time A overtook him for the first time?

Reply Like? Yes | No

kanithi.shanmukharao 10 years ago

[?]+[?]+[?]=30
by using 1,3,5,7,9,11,13,15....only numbers are repeated

Reply Like? Yes (4) | No

radha 10 years ago

i have interview in athenahealth ....can u pls send me the preparation materials at
radhasanthosh88@gmail.com

Reply Like? Yes | No

Jayasri to karthikeyank 10 years ago

hi,cts is coming to my college in few wks,so plz mail me all recent cts paper at jaysrisekar19@gmail.com

Reply Like? Yes | No

shubham saraf 10 years ago

Certain code, TRIVANDRUM is coded as OESVNUSJWB. How is JAMSHEDPUR written in that code?

Reply Like? Yes (55) | No (4)

P.ARUNA 10 years ago

JAMSHEDPUR will be coded as FEQVSKBNTI

Like? Yes (15) | No

Unknown 4 years ago

Certain cod of pen

Like? Yes | No

roshith m p 10 years ago

Three taps A,B and C can fill a tank in 20,30 and 40
minutes respectively. All the taps are opened
simultaneously and after 5 minutes tap A was closed and
then after 6 minutes tab B was closed .At the moment a
leak developed which can empty the full tank in 60
minutes. What is the total time taken for the completely
full?

Reply Like? Yes (2) | No

chandrika 10 years ago

Any one have the idea about miracle software systems,Vizag?

Reply Like? Yes (1) | No

YUVA 10 years ago

please send me interview tips to crack huwai interview
my mail ID-yuvi007raj@yahoo.in

Reply Like? Yes | No

YUVA 10 years ago

Any body please send the interview tips to crack huwai company

Reply Like? Yes | No

Surya Teja Tanuku 10 years ago

hey any one knew how to solve the easy way of logarthims?

Reply Like? Yes | No

k sureshbabu 10 years ago

any body preparing for gate2016

Reply Like? Yes | No

murthy vogeti 10 years ago

My scores in amcat ...
English - 46%
Logical - 61.7%
Quantitative - 86.2%
Computer Pgm - 99.1%
what type of job Do i expect for my score...?

Reply Like? Yes (1) | No

murthy vogeti 10 years ago

My scores...
English - 46%
Logical - 61.7%
Quantitative - 86.2%
Computer Pgm - 99.1%
what type of job Do i expect for my score...?

Reply Like? Yes | No

neelanshi 10 years ago

Plz Explain
49log2*2log7=?

Reply Like? Yes | No

mayank kumar 10 years ago

Use change of base formula: (logxa)(logab)
= logxa (logxb / logxa) = logxb
explanation: 49log2*2log7=7log2^7*log7^2
=7log2^7*(log2^2/log2^7)
=7log2^2(numerator lo2^7 and denumerator log2^7 cancel out. and log2^2=1 because base is same )
=7*1=7
final ans=7

Like? Yes | No

zabiulla to SUSHANT KUMAR 10 years ago

1 GIRL WHO WAS BLIND, DEAF, DUMB & ALSO UNEDUCATED. A BOY LOVED HER. WITHOUT TOUCHING HER HOW TO PROPOSE HER?

Reply Like? Yes | No

Dinni 10 years ago

By donating our eyes to her

Like? Yes | No

Ata Mohammed 10 years ago

By using Brail language

Like? Yes (1) | No

Anilkumar 10 years ago

A language has 28 different letters in total. Each word in the language is composed of

maximum 7 letters. You want to create a data-type to store a word of this language. You

decide to store the word as an array of letters. How many bits will you assign to the data-

type to be able to store all kinds of words of the language?

Reply Like? Yes | No

sahithi 10 years ago

A 10 L cylinder contains a mixture of water and sugar, the volume of sugar being 15% of total volume. A fesi litres of the mixture is released and an equal amount of water is added. Then, the same amount of the mixture as before is released and replaced with watel for a second time. As a result, the sugar content becomes 10% of total volume. What is the approximate quantity of mixture released each time?

Reply Like? Yes | No

sunil 10 years ago

Best website for competitive exams www.scoreph.in

Reply Like? Yes | No

Yashi Das 10 years ago

The letters in the word ADOPTS are permuted in all possible ways and arranged in alphabetical order then find the word at position 42 in the permuted alphabetical order?
a) AOTDSP
b) AOTPDS
c) AOTDPS
d) AOSTPD

Reply Like? Yes | No

Rishu 9 years ago

c) AOTDPS

ADOPTS can be permuted in 6*5*4*3*2*1=720 ways
1st letter=ADOPST
120th letter=ATSPOD
96th letter=ASTPOD
72nd letter=APTSOD
48th letter=AOTSPD
42nd letter=AOTDSP

Like? Yes | No

vishal chandrola 10 years ago

how to give college review & ratings?

Reply Like? Yes | No

darshika shah 10 years ago

Previously asked elitmus questions

Reply Like? Yes | No

darshika shah 10 years ago

Previously asked elitmus questions

Reply Like? Yes | No

hemant 10 years ago

A card is drawn from a pack of 250 card numberd 1 to 200.what is the probability that drawing a no.which is perfect cube?

Like? Yes | No

akula sruthi 10 years ago

Im going to take AMCAT exam this month if i refer the AMCAT questions in this site will it be enough to get a good score ?

Reply Like? Yes | No

geetha s 10 years ago

add to whats app group 9880510729

Like? Yes | No

kripashankersharma to RAKESH 10 years ago

hi rakesh i want to know how to pocess marvellous iq like you and can you tell me what do you do

Reply Like? Yes | No

Ansh Dev 10 years ago

How many litres of 30% alcohol solution and how many of 60% alcohol solution must be mixed to produce 18 litres of 50% solution?

Reply Like? Yes | No

anjali mishra 10 years ago

main{
int array[5]={0,1,2,3,4};
int *ptr=(int*)(& array+1);
printf("%d%d",*(array+1),*(ptr-1));

Reply Like? Yes | No

Gowtga to hari priya 10 years ago

rectangular plank of sqrt(2)meters wide can be placed so that it is

on either side of the diagonal of a square shown below.can i get the diagram plzz??

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Naresh Babu to Deep Singh 10 years ago

Congrats Deep Singh please send me english assesment previous paper to my mail is .......snbabu@gmx.com

Reply Like? Yes | No

Naresh Babu to kritika gupta 10 years ago

Hi Kritika Gupta, can u explain ciearly how u get that answer for telephone number problem please...

Reply Like? Yes | No

Soumen Dofadar to Bashitwa Roy 10 years ago

hiiiiiiiiiiiiiiiiiiiiiiiii

Reply Like? Yes | No

Georgie Tagra 10 years ago

Mathematics posses not only truth, but supreme beauty .. a beauty cold and austere, like that of sculpter

Reply Like? Yes | No

naina shukla 10 years ago

i ve got 50% marks in b.sc.
am i eligible for giving the exam of company.
plz tell me. can i give the exam of elitmus

Reply Like? Yes | No

lavanya.c 10 years ago

its been a year & still serachin fa job any walkins/offcampus fa 2014 batch pls let me know??

Reply Like? Yes | No

vrinalini maitreyae 10 years ago

yes ofcourse... u better upload ur resume on freshesrworld.com and company portals directly. this year companies r recruiting 2014 batch alone.

Like? Yes | No

Rajneesh Yadav 10 years ago

what did you think about surface tension

Reply Like? Yes | No

madhuri 10 years ago

An airline has a certain free luggage allowances and charges for excess lugguage at a fixed rate per kg.Two passengers,Raja and Ramu have 60kg of lugguage between them,and are charged 1200/- and 2400/- respectively for excess lugguge.Had the entire lugguage belonged to one of them,the excess lugguge chages would have been 5400/-,then
1)whatis the weight of ramu lugguage?
options 20 25 30 35 40

2)what is the free allowance lugguage?
options 10 15 20 25 30

Reply Like? Yes (15) | No (3)

NALLAM SUDHEER 10 years ago

ramu lugguage 35 kg
free allowance lugguage 15 kg

Like? Yes (2) | No

nagavenkat 10 years ago

Can anyone of you tell me the best book to prepare for placements for the companies like TCS,Tech-mahindra,Infosys,Ibm,etc............

Reply Like? Yes (1) | No

kripashankersharma 10 years ago

donot go in tcs

Like? Yes | No

Sreenivasa reddy 10 years ago

hi guys i cleared the first round which is held by ibm in sjbit college bangalore.plz help me guys how to clear further rounds

Reply Like? Yes | No

naina agarwal 10 years ago

what are the education programs and their duration in TCS?

Reply Like? Yes | No

Hari Prasath to jayanthi 10 years ago

Hai jayanthi are you attending athena healthcare interview on thursdy ?

Reply Like? Yes | No

radha 10 years ago

A contractor undertakes to build a wall in 50 days.He employs 50 men for the same. However,after 25 days he finds that the work is only 40% complete. How many more men need to be employed to complete the work 10 days before time.

Reply Like? Yes (12) | No

Ayush Gupta 10 years ago

75 persons more needed..
Total 125..

Like? Yes (7) | No (1)

A SIRISHA 10 years ago

4gms OF A MIXTURE OF NA2CO3 AND NAHCO3 ON HEATING LIBERATES 448ml OF CO2 AT STP . THE PERCENTAGE OF NA2CO3 IN THE MIXTURE?

Reply Like? Yes (1) | No (1)

pandramish sai krishna 10 years ago

The sum of the present ages of a father and son is 60 years. Six years ago,fathers age was five times the age of the son. After six years,sons age will be ?

Reply Like? Yes | No

Ayush Gupta 10 years ago

after six years age of son =20 years

Like? Yes | No

niyas to Vasantha Raj Pasupuleti 10 years ago

hello did you got any mail after selection

Reply Like? Yes (1) | No

RAHUL KUMAR SINGH 10 years ago

IF WE TRIVANDRUM AS OESVNVTKXC . SO HOW WE CAN WRITE JAMESEDPUR ..

Reply Like? Yes | No

Deepak kushwaha 10 years ago

FEQVSLCOGU is the answer

Like? Yes | No

Akshay kumar 10 years ago

A cycle can bought on cash payment of 400 or down payment of rs 160 nd two equal monthly instalments of 130 rupees each. what will be the annual rate of interest

Reply Like? Yes (1) | No

janardhan 10 years ago

Inch:Centimeter:: Pint:?
a) Pound b)Gallon c)Litre d)Thickness

Reply Like? Yes | No

k sureshbabu 10 years ago

gallon is a big value
so ans is litre

Like? Yes | No

janardhan 10 years ago

[SSC]: ?, IL, PS, WZ
A)BE B)CE C)EG D) BD

Reply Like? Yes (1) | No

Devendra Marghade 10 years ago

A)BE

B(CD)E---(FGH)---I(JK)L---(MNO)---P(QR)S---(TUV)---W(XY)Z

Like? Yes | No

tushar varshney to siddharth prakash singh 10 years ago

if any set of numbers starting with {2,3,4,.....876,877} . how many A.P. can be formed if every A.p. contains at least 3 terms and starting with 2 and ending with 877.
a)-6 b)-7 c)-9 d)-12

Reply Like? Yes (1) | No (2)

tushar varshney 10 years ago

if any set of numbers starting with {2,3,4,.....876,877} . how many A.P. can be formed if every A.p. contains at least 3 terms and starting with 2 and ending with 877.
a)6 b)7 c)9 d)12

Like? Yes (1) | No

tushar varshney to siddharth prakash singh 10 years ago

siddharth prakash singh as i am given an exam two times but i did`nt qualify ,, major problem is that if i crack quant then verbal section did`nt and also i have a problem regarding the data interpretation so kindly suggest what can i do so that i can perform well in the exam .. kindlly suggest the material for DIor other relevant topic.

Reply Like? Yes | No

SANDHYA 10 years ago

the ratio of the number of white balls in a bag to that of black balls is 1:2.of 9 grey balls are added the ratio of the numbers of white, black and grey balls becomes 2:4:3 howmany black balls?

Reply Like? Yes (32) | No (1)

Devendra Marghade 10 years ago

12

As per the initial ratio of 1:2, if number of white balls & black balls are x & 2x respectively
After adding 9 grey balls number of white,black & grey balls are x, 2x & 9 and ratio 2:4:3
As ratio of 3 for grey balls corresponds to 9 balls, so white balls=(9/3)*2=6 and Black balls=(9/3)*4=12

Like? Yes (18) | No (6)

k sureshbabu 10 years ago

as per ratio 3 parts equal to 9 grey balls 1p=3 balls so 4*3=12black balls

Like? Yes (13) | No (1)

Rohit 10 years ago

let total numbers of balls be x. 3/(2+4+3).x=9 .. so x= 27 . now 4/(2+4+3).27=12.. there is no use of 1:2 ratio

Like? Yes (6) | No (1)

Dharmender guptha 10 years ago

its ans is 59...............................................................................................................................

Like? Yes (1) | No (8)

Rajesh 10 years ago

ratio becomes 1x:2x:9
now 2x/9 = 4/3
x = 6
black balls = 2*6 = 12

Like? Yes (6) | No (1)

lokesh 10 years ago

there will be 12 black balls

Like? Yes (4) | No

Deepak kushwaha 10 years ago

there are 12 black balls in bag

Like? Yes (1) | No (3)

chandrika 10 years ago

12
white and black balls ratio is 1:2.
then 9 gray balls are added to that bag. It means grey balls are 9. after adding the gray balls ratio becomes 2:4:3 as per this ratio 3parts is equal to 9balls so 1part equal to 3balls like that 4(3)=12 black balls and 2(3)=6 white balls

Like? Yes (2) | No

Dinni 10 years ago

Given there are 9 grey balls are added so that ratio becomes 2:4:3
So, let total no. of balls as y => (3/9)y = 9 => y=27.
Given white balls and black balls ratiio is 1:2 => white balls = x, black balls = 2x.
so, white+black+grey =27
x+2x+9 = 27
3x =18 => x=6.
Then, black balls = 2x = 12.

Like? Yes (5) | No

amrit sen 10 years ago

12 -- 1:2
2:4:3
6:12:9 = no. Of w,b&g balls

Like? Yes (1) | No

amrit sen 10 years ago

12
1:2
2:4:3
6:12:9 = no. Of w, b, g balls

Like? Yes | No (1)

Priyadarshni Somasundaram 10 years ago

initially, let white balls=x and black balls be 2x.
then 9 grey balls are added the ratio becomes 2:4:3 i.e white=2y ,black =4y, grey =3y
given grey=9, (i.e) 3y=9 =>y=3
so black => 4y =>4 *3 =12
no.of.black balls =12

Like? Yes (8) | No

Syed Irfan K 10 years ago

Let common factor as 3
Nw by taking 3 as common ratio becomes 1:2
If 9 great balls added than ratio becomes 2:4:3
Multipling by 3 to the ratio we get 6:12:9
So black balls are 12

Like? Yes | No

Rahul Gupta 10 years ago

as per ratio 3 parts equal to 9 grey balls 1p=3 balls so 4*3=12black balls

Like? Yes | No

satyanarayan shriniwas yeldi 10 years ago

12 as per ratio 3 parts equal to 9 grey balls 1p=3 balls so 4*3=12 black balls

Like? Yes | No

Bharani shankar 10 years ago

12 black balls :)

Like? Yes (1) | No

arun singh tomar 10 years ago

12
W:B:G is 2:4:3
Total grey ball is 9
Means we have to multiply the above ratio by 3
in order to get 9 balls.
Thus black ball is 4❌ 3 i.e 12

Like? Yes | No

chitra 10 years ago

answer:12 grey ball.because 9 grey ball=3 grey ball ratio. so assure 4 black ball ratio = 12 no.of black ball.
from 2:4:3 the white ball is 6,black ball is 12 and grey ball is 9.

Like? Yes (2) | No

Anil Gautam 10 years ago

after adding 9 grey ball the ratio become 2:4:3
where white ball =2x, black ball =4x & grey ball =3x
here 9 grey ball is added so 3x=9
so, x =3
hence no. of black ball =4x= 4*3=12
therefore, 12 is the answer

Like? Yes | No (1)

himanshu jindal 10 years ago

White balls are half of black balls, nd 2/3of gray balls. When gray balls are 9 then white balls are 6. Then double of white balls are equal to black ball=12

Like? Yes | No (1)

fazleem 10 years ago

12 answer can be easily evaluated frm the ratios of the three

Like? Yes | No

SHAIK MAHABOOB BASHA 10 years ago

there will be a 12 black balls

Like? Yes | No

Jayashri Reddy 10 years ago

ans is : 12
white and black balls ratio is 1:2
after that 9 grey balls are added then the ratio 2:4:3
9 is divisible by 3 with 3 times
by multiplying all these we get 12 black balls...... that is 6:12:9

Like? Yes | No

AKSHAY CHOREY 10 years ago

12
3*3=9
so
4*3=12

Like? Yes | No

ashutosh tiwari 10 years ago

first if there are 12 black balls the no. of white balls will be 6 i.e.6:12=1:2 when 9 grey balls will be added it will be 6:12:9 = 2:4:3

Like? Yes | No

Arun Kumar 10 years ago

24 black balls are there

Like? Yes | No

Arun Kumar 10 years ago

Actually the write answer is 12 black balls

Like? Yes | No

Ashish Pathak 10 years ago

x:2x:9=2:4:3
as per ratio 3p=9 balls,then 1p=3 therefore 4p = 12

Like? Yes | No

Prabhat Burnwal 10 years ago

let x be the total number of balls after adding 9 grey balls.
then x*3/9=9,and solving this we get x=27.
so the number of white balls + black ball=27-9=18.
now,black balls=2*18/3=12

Like? Yes | No

diksha 10 years ago

the answer is 12 back balls

Like? Yes (1) | No

sabira 10 years ago

the answer is 12

Like? Yes | No

MAHESH ABISHEK R 10 years ago

The black balls are 12

Like? Yes | No

Kashish Bhasin 10 years ago

12, Since the value of Ratio 1 is 9/1.5 = 6

Like? Yes | No

Deepanshu Chaturvedi 10 years ago

3 part of grey ball is equal to 9.so, 1 part is equal to 3.no. of black balls equals to 4*3=12.

Like? Yes (1) | No

Mousuma Roy 10 years ago

3y=9
y=3
1x+2x+9=2y+4y+3y
x=6
2x=12

Like? Yes | No

Lakshya Kohli 10 years ago

From 1:2 => x + 2x = y
From 2:4:3 => 2z + 4z + 3z = 9+y
Since grey balls = 9, therefore 3z = 9 => z = 3
2z = 6 and 4z = 12, which also shows, 2*6 = 12.
number of black balls = 12

Like? Yes (1) | No

g obulesu 10 years ago

w:b= 1:2,w:b:g= 2:4:3
we are adding 9 green balls,in that ratio we have grey balls 3,but actually we are adding 9 balls .
so we multiplying with 3,we get 9 balls
wb=2*3=6,bb=4*3=12
so the ans is 12

Like? Yes | No

shruti 10 years ago

the answer is 12

Like? Yes | No

Puja Dhar 10 years ago

let the total number of balls is= x,
so, 3x/(2+4+3)=9
or, x= 27
so black balls= (4*27)/(2+4+3)=12

Like? Yes (2) | No

HARIOM 10 years ago

ANS will be 12................
ans is 12

Like? Yes | No

VARMA 10 years ago

12
1part=3
so,4 parts=12

Like? Yes | No

manjula 10 years ago

3x=9
x=3
therefore, ratio of back balls*3=no.of black balls
4*3=12

Like? Yes | No

chintu 10 years ago

as given data there is 9 grey balls ratio is 3.so 1 point =3 balls,and there is 4 black balls then finally 4*3=12black balls

Like? Yes | No

Sandeep Patidar 10 years ago

12
given ratio w:b=1:2
then added 9 balls and ratio becomes 2:4:3
w*3:b*3:g=2:4:3

Like? Yes | No

hari prasath 10 years ago

12 black balls in the bag

Like? Yes | No

Ashish Pathak 10 years ago

x:2x:9=2:4:3
therefore,x/(3x+9)=2/9
9x=6x+18
therefore,x=6
then 2x=12

Like? Yes | No

yashwitha priya 10 years ago

let tot no.of balls will be x. so (3/(2+4+3))x=9 ....=>x=27..therefore (4/(2+4+3))27=12

Like? Yes | No

Abhishek Gowda 10 years ago

Answer is 9 black balls

Since 9 grey makes 3 parts
1part=3
4parts*3=12 black ball

Like? Yes | No

Paul 10 years ago

Answer is 12.
here w:b=1:2
and w:b:g=2:4:3
no multiply the above eq with 3
gives
6:12:9 where 9 are the number of grey balls
6 white balls n 12 black balls.. making 6:12=> 1:2

Like? Yes | No

venkatesh 10 years ago

w:b=1:2,w:b:g=2:4:3 g=9 so black=12

Like? Yes | No

madhav gang 10 years ago

12
2:4:3=2*3:4*3:3*3
so 12 black balls

Like? Yes | No

ADITYA MISHRA 10 years ago

let no of white balls be x
therefore no of black balls is 2x
when 9 grey balls are added
ratio becomes x:2x:9 which is proportionate to 2:4:3
from above you can see that x/2 = 2x/4 = 9/3
therefore x=6
so 6 white balls 12 black balls and 9 grey balls are present

Like? Yes (1) | No

Vignesh 10 years ago

grye ball ratio 3x=9,then x=3,
the black ball ratio is 4x then subs x value 4*3=12.

Like? Yes | No

Tanmoy Chatterjee 10 years ago

12 black balls .

Like? Yes | No

Amar Kumar Ram 10 years ago

let the white and black balls be k and 2k. after adding grey ball we get the ration 2:4:3 which must be equal to k : 2k : 9... only focusing on grey ball we can get that to get the ratio as 3 in 2:4:3,
9 is divided by 3 in k : 2k : 9... so all terms in the ration k : 2k : 9 has been divided by 3.
for black balls,
2k /3 = 4..... so we get, k= 6
so the number of black balls are 2k = 2*6 =12

Like? Yes | No

Afrida Mukaddas M C 10 years ago

12

w:b:g=2:4:3 which means b/g=4/3.
i.e: b=4/3 *g=4/3 *9=12.
i.e:no.of black balls=12.

Like? Yes | No

Sayandeep Jana 10 years ago

suppose there are x no of balls.
ratio becomes x:2x:9
from the ratio 2:4:3 we get 2x/9 = 4/3
x = 6
black balls = 2*6 = 12

Like? Yes | No

Pratik Suvagiya 10 years ago

Black balls=(9/3)*4=12

Like? Yes | No

venkatesh 10 years ago

12 balls !!!!!!!!1111!!!!!!!!!!!!!!!!!!!!!

Like? Yes | No

rahul shaw 10 years ago

ratio= 2:1
new ratio=2:4:3 =2x:4x:3x
where 3x=9
x=3
4*3=12

Like? Yes | No

Radhika 10 years ago

Let the initial ratio will be 2:4. Now 3 units is 9. So 1 unit= 3. Black ball are 4 units which is 4*3 = 12

Like? Yes (1) | No

vikrant 10 years ago

ratio of grey 3 in which balls are 9 so black =3*4=12

Like? Yes | No

sukant 10 years ago

(3/9)*total=9 then total balls =27
white +black=27-9
black=(2/3)*18=12

Like? Yes | No

Ajeet Kumar 10 years ago

12 balls are black n 6 white ball and 9 grey balls

Like? Yes | No

Sagararya 10 years ago

there are 12 black colour balls in a bag

Like? Yes | No

Sagararya 10 years ago

12 black colour balls are there

Like? Yes | No

Navin 10 years ago

3x=9 =>x=3 => 4x = 12

Like? Yes | No

meghana 10 years ago

12 black balls are present

Like? Yes | No

meghana 10 years ago

12 black balls are present

Like? Yes | No

poornima 10 years ago

the ratio of num of white and black balls be 1:2,if 9 grey balls are added then it becomes (x,2x,9) and
this points be equal to (2,4,3)
by equating these points vil get value of x=6
no of white ,black,grey balls vil b (6,12,9) respectively

Like? Yes | No

Vardhaman Patil 10 years ago

1:2=W:B
2:4:3=w:b:G
G=9
9/3=3
3*4=12 ->W

Like? Yes | No

RAHUL KUMAR 10 years ago

initially ratio is 2x/3x now 9 balls are added 2x/3x+9=4/9. hence x=6 so number of black ball is 2x ...hence 12 black balls

Like? Yes | No

Gaurav kumar 10 years ago

The total number of ball is=9
Types of ball=3
find the black ball=(9/3)*4=12
same like as white ball is=(9/3)*2=6
grey ball=(9/3)*3=9

Like? Yes | No

ajay kulkarni 10 years ago

From 2nd ratio 4 : 3 = black : grey
There are 9 grey balls
Therefore 4 : 3 = black : 9
Hence black balls = 12

Like? Yes | No

venkateswara rao tumu 10 years ago

12 black balls are there
if 9 grey balls are added then rato of w:b:g balls becomes 2:4:3, then 3x=9 =>x=3
then black balls =4*3=12

Like? Yes | No

anup yadav 10 years ago

(2:4:3)3=6:12:9 b=12

Like? Yes | No

kriti kankariya 10 years ago

12
number of white & black balls are x & 2x
adding 9 grey balls
white,black & grey balls are x, 2x & 9 and ratio 2:4:3
ratio of 3 for grey balls corresponds to 9 balls
therefore Black balls=(9/3)*4=12

Like? Yes | No

vishal kumar 10 years ago

12
assume the number of white ball is 2x then numbers of black ball will be 4x
given that if we add 9 grey balls then the ratio become 2:4:3
so white balls= (9/3)*2=6; black balls = (9/3)*4=12

Like? Yes | No

Ameya 10 years ago

plzz send it at velukarameya@gmail.com

Reply Like? Yes | No

Ameya 10 years ago

Can someone please send me previous years TCS question papers?? And plzz tell me how m4maths helped u??

Reply Like? Yes | No

aditi sharma to aditi sharma 10 years ago

aditi sharma rajasthan

Reply Like? Yes | No

Bhargavi to priyadharshini 10 years ago

hey pls let me know how u hav applied to Ibm? so that i can attend the drive as soon as possible

Reply Like? Yes | No

shilpi kumari to Deep Singh 10 years ago

congo deep.............plzz send me previous paper of ibm for gts profile............singhshilpi255@gmail.com

Reply Like? Yes | No

nishant singh 10 years ago

plzzzzzz send me also at nishantsingh101991@gmail.com

Like? Yes | No

k Satish 10 years ago

does anyone completed the written and HR rounds of CSC company off campus ,whic is conducted on 10-05-15 in hyderabad malla reddy college ... any hyderabad guys please reply me,
does any one got mail for technical round,

Reply Like? Yes | No

mintu 10 years ago

When we found her amidst the romantic ruins and backpackers, she was busy chasing dogs.
a) amidst
b)Between
c)Among
d)Beyond
e)outside

plz tell me which is correct ans ????

Reply Like? Yes (216) | No (24)

Dharmender guptha 10 years ago

its ans is among

Like? Yes (6) | No

Asad Siddiqui 10 years ago

tell me ......piz..!!

Like? Yes (2) | No

Rajneesh Yadav 10 years ago

Like? Yes | No (1)

neha roy 10 years ago

the correct answer is among

Like? Yes (1) | No

sanjeev kumar 10 years ago

Ans is ..b)Between

Like? Yes (2) | No (1)

Kashish Bhasin 10 years ago

12, Since the value of Ratio 1 is 9/1.5 = 6

Like? Yes | No

sanjeev kumar 10 years ago

b) Between the romantic ruins..

Like? Yes | No

amisha 3 years ago

Answer is amidst

Like? Yes | No

mintu 10 years ago

The most obvious downside to this pessimism is that it is coming at their expenses.
a) It is coming at their expense
b) It is costing at their expense
c)It will be expensive
d) It was coming at their expense

plz tell me which is correct ans ????

Reply Like? Yes (956) | No (94)

vaibhav jain 10 years ago

it is coming at their expense

Like? Yes (39) | No (12)

Gopesh rockstar 4 years ago

d) is the correct answer

Like? Yes (6) | No (2)

Imax 3 years ago

A)it is coming at their expense

Like? Yes (1) | No

amarjeet kaur 10 years ago

mukesh has twice as much money as sohan and sohan has 50% more money than what pankaj has. if the average money with them is Rs.110, then mukesh has :

Reply Like? Yes (17) | No (4)

Devendra Marghade 10 years ago

180 Rs.

M+S+P=3*110=330 ---(i) &
M=2S & S=1.5P, So M=3P
Substituting in the values in terms of M in (i), M+ (M/2) +(M/3)=330, M=180

Like? Yes (11) | No (5)

Gaurav 10 years ago

Say Pankaj Has 100 then Sohan has 150 ,Mukesh Has 300 Now ratio of Mukesh : Sohan : Pankaj is 6 : 3 : 2 then Total Rs they have 330 then mukesh Share is 6/11*330 = 180.

Like? Yes (10) | No (2)

manish kumar to Deep Singh 10 years ago

Means the same model questions is came or exact questions is came for your exam pls give me reply ASAP

Reply Like? Yes | No (1)

manish kumar to Deep Singh 10 years ago

Congrats Deep singh the questions exactly came from this site only or any other sites

Reply Like? Yes | No

Ashraf Siddiqui 10 years ago

Plz send IBM GTS ATO questions....urgent....anyone plz.....ashrafsiddiqui.786@gmailcom

Reply Like? Yes | No

BAIPOTU SUMAN 10 years ago

need ibm gts ato profile question papers urgently...............baipotusuman@gmail.com

Reply Like? Yes | No

siddharth prakash singh to gaurav 10 years ago

@gaurav... um surprised hw u copied m9 ans... u sud atleast use ur brain b4 copying ans...

Reply Like? Yes (2) | No

bhagya shri 10 years ago

two sides of triangle are 50m and 8m, third side is n, find out the n??
a -392 b-390 c-398 d -395

Reply Like? Yes (1) | No

k sureshbabu 10 years ago

every option will satisfy the question. if iam wrong plz send me the correct ans my mail id is kotasureshbabu99@gmail.com

Like? Yes | No

adeline 10 years ago

hi frends! I attended ibm drive in panipat and got unselected/. Anybody tell me can I attend gurgaon drive ? please guys reply soon.

Reply Like? Yes (2) | No

Bittu Singh 10 years ago

ya sure bt change mail and mob no

Like? Yes (1) | No

nidhin to shivani 10 years ago

hello shivani.. Can you please share the aptitude questions or the topics for the IBM GTS Technical Associate Interview??

Reply Like? Yes (5) | No

mahidhar 10 years ago

The below questions asked in ibm

Reply Like? Yes (3) | No

mahidhar 10 years ago

Which is largest 1/5,20%,0.22,2/8

Reply Like? Yes (5) | No

kishore 10 years ago

1/5 = 20%
2/8 = 25%
so 2/8

Like? Yes (2) | No

mahidhar 10 years ago

The printed price on a book is 400 , a book seller offers a 10% discount on it. If he stills earns a profit of 12% the cp of the book is

Reply Like? Yes (4) | No

Devendra Marghade 10 years ago

321.42

With 10% discount on 400 , the Selling price=360
If 12% profit is earned on 360, the Cost price=360*100/112 =321.42

Like? Yes (4) | No

Gaurav 10 years ago

400*90/100*100/112 = 321.4

Like? Yes (1) | No

mahidhar 10 years ago

What Su of money will accumulate to rs5300 at 8% rate if interest in 9months

Reply Like? Yes (2) | No

kishore 10 years ago

Rs/.88333.33
as 8 % annum means for 1 month it is 8/12 % interest rate
so 5300 = 8*9*P/(100*12)
P = 88333.33

Like? Yes | No

mahidhar 10 years ago

Asked in ibm. In a bus left side there are 10 seats available, 2 fewer seats in right side,three people can sit In a seat last seat capacity is 5, then how many people can sit in the bus?

Reply Like? Yes (20) | No (4)

onkar nath 10 years ago

according to this anser should be 17

Like? Yes (9) | No (3)

satyanarayan 10 years ago

left side 9*3=27
right side 9*3=27
last seat=5
so ans is
59

Like? Yes (1) | No (1)

Ashraf Siddiqui 10 years ago

left 10*3=30
right 2*3=6
last=5
so its 41

Like? Yes (4) | No (1)

Muttavarapu Meghana 10 years ago

10*3=30
2*3=6
last seat=5
total=41

Like? Yes | No

Techie 10 years ago

Total seats left and right is 10+2=12
3 can sit in each12*3=36
last seat 36+5=41
Ans is 41.
@onkar nath Can you please explain how did you get 17???

Like? Yes | No

divya 10 years ago

left side 10
right side 2 fewer
left the last seat
so at right 9*3=27
at left 2 fewer means less than 2 seat so its 1 seat at right so 1*3=3
now the last seat at right holds 1*5=5
so the ans is 35

Like? Yes (5) | No

DHANIKONDA RATNA BHAVANI 10 years ago

38 is the answerfor this question?

Like? Yes | No

DHANIKONDA RATNA BHAVANI 10 years ago

tatal seats=10+2=12
capacity of each seat= 3
last seat capacity =5
capacity of 11 seats excluding last seat=11*3=33
last seat capacity=5
total people can sit in the bus=33+5=38

Like? Yes | No

Aditi Khandagale 10 years ago

total capacity=3(10+2)+5
total capacity=3(12)+5
=36+5=41

Like? Yes (1) | No

Dharmender guptha 10 years ago

59 is the correct ans

Like? Yes (3) | No

Ajeet 10 years ago

9 seats are for 3 people capacity(9*3)=27
and right side also(2*3)=6
last seat capacity =5
=>27+6+5
=>38

Like? Yes | No

Ajit Dash 10 years ago

In left: 10*3=30
In right: 2 fewer seat i.e. no of seat in right = 12
So in right 12*3=36
In last seat 5 people can seat.
so total people= 30+36+5= 71

Hence answer should be 71

Like? Yes | No (1)

chandrika 10 years ago

answer should be 41

Like? Yes | No

neelabh 10 years ago

Left side seat available = 10*3=30
Right side seat available =8*3=24
Last seat capacity =5
Therefore seats available in the bus =30+24+5=59

Like? Yes (2) | No

neha roy 10 years ago

the answer is 41

Like? Yes | No

sanantan 10 years ago

Left side : 10*3=30
Right side : (10-2)*3=24
At last seat 5
Total: 30+24+5=59

Like? Yes | No

harsh shah 10 years ago

left side 10*3=30
right side 8*3=24
last seat=5
so ans is
59

Like? Yes (1) | No

Charan Teja E 10 years ago

right side 3 people can sit.. excluding last row 9*3-=27
last seat capacity 5... 3 in right..left has 2 cases

if 1 on lef with middle seat pathgap
1*7=7
if 2 on left without path gap
2*7=14

either (27+5+7=39) or (27+5+14=46)

Like? Yes | No

ashutosh tiwari 10 years ago

in left:9*3=27
in right:7*3=21
because 2 fewer seats means 2 less than that of
left side seats so there will be 8 seats in right side
last seat is common for both the sides so
no of seats in left side=9
no of seats in right side=7
so excluding last seat total people can sit = 27+21=48
last seat capacity= 5
so total = 48+5=53
53 should be the right ans

Like? Yes | No

ravi 10 years ago

total number of seats in a bus is 35 .... by logically speaking last seat is common for both left and right side which contain 5 sit (2 seats are excluded now)..remaining 10 seat hold 30 sit thus totally 35 sits... i think so .. if wrong sorry.

Like? Yes | No

deekshith 10 years ago

10*3+8*3+5+59 is answer..becos 2 fewer seats than left side

Like? Yes | No

shubham to mahesh sinha 10 years ago

If u attende the IBM gets drive at Piet den plz share , what kind of question was asked .

Reply Like? Yes (2) | No

Apeksha Malviya 10 years ago

Hi frnds i got placed in ibm gts last week can any one plz tell me when will be the joining.?

Like? Yes | No

LOKESH BABU GOLI to senthil 10 years ago

please rply me we have to prepare form this site its enough for ibm aptitude and wht is the cutoff marks for aptitude test plz rply me thanq u

Reply Like? Yes | No

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