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Dimple

India

Punjab

Time: 00:01:33

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Maths Quotes

Sometimes it is useful to know how large your zero is.

Unknown

maths and life is same,because both contains lots of problems

saranya rajan

Placed User Comments

M4Math helped me a lot.

Vipul Chavan 4 years ago

Thanks m4 maths for helping to get placed in several companies.
I must recommend this website for placement preparations.

yash mittal 5 years ago

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(9 years ago) "Other"

hi m4maths.com frnds

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(9 years ago)

hi welcome to m4 maths

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(9 years ago) "Other"

hai sir how are u?

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to (9 years ago) "Other"

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

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(9 years ago) "Other"

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

(9 years ago)

length of the pool is 45 m

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(9 years ago)

Len the pool is 45 m

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(9 years ago)

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

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to (9 years ago) "Other"

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

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to (9 years ago) "Other"

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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(9 years ago) "Other"

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

(9 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)

(9 years ago) "Other"

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

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(9 years ago)

after 15 days they should leave

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(9 years ago)

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

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(9 years ago) "Other"

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

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(9 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

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(9 years ago)

Figure cannot be uploaded Square is ABCD and octagon is EFGHIJKL

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(9 years ago) "Other"

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.

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(9 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

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(9 years ago) "Other"

If 2

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(9 years ago) "Other"

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

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(9 years ago)

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

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(9 years ago) "Other"

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)

(9 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

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(9 years ago)

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

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(9 years ago) "Other"

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

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(9 years ago)

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

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(9 years ago) "Other"

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

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(9 years ago) "Other"

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

(9 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)

(9 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)

to (9 years ago) "Other"

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

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to (9 years ago) "Other"

Can you tell me how to prepare for elitmus?

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(9 years ago) "Other"

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

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(9 years ago)

Ans=x

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

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(9 years ago)

thank you dev

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to (9 years ago) "Other"

hey totally how many parker pens u got till now?

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(9 years ago)

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

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(9 years ago) "Other"

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

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(9 years ago) "Other"

. 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?

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(9 years ago) "Other"

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

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(9 years ago) "Other"

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

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to (9 years ago) "Other"

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

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(9 years ago) "Other"

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

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

(9 years ago)

JAMSHEDPUR will be coded as FEQVSKBNTI

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(3 years ago)

Certain cod of pen

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(9 years ago) "Other"

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

(9 years ago) "Other"

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

Reply Like? Yes (1) | No

(9 years ago) "Other"

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

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(9 years ago) "Other"

Any body please send the interview tips to crack huwai company

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(9 years ago) "Other"

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

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(9 years ago) "Other"

any body preparing for gate2016

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(9 years ago) "Other"

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

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(9 years ago) "Other"

Plz Explain
49log2*2log7=?

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(9 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

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to (9 years ago) "Other"

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

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(9 years ago)

By donating our eyes to her

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(9 years ago)

By using Brail language

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(9 years ago) "Other"

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?

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(9 years ago) "Other"

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?

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(9 years ago) "Other"

Best website for competitive exams www.scoreph.in

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(9 years ago) "Other"

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

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(8 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

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(9 years ago) "Other"

how to give college review & ratings?

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(9 years ago) "Other"

Previously asked elitmus questions

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(9 years ago) "Other"

Previously asked elitmus questions

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(9 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?

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(9 years ago) "Other"

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 ?

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(9 years ago)

add to whats app group 9880510729

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to (9 years ago) "Other"

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

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(9 years ago) "Other"

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

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(9 years ago) "Other"

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

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to (9 years ago) "Other"

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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to (9 years ago) "Other"

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

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to (9 years ago) "Other"

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

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to (9 years ago) "Other"

hiiiiiiiiiiiiiiiiiiiiiiiii

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