Users Discussion Board

sneha 9 years ago

An intern can do a job in 15 days. The manger and senior manager are busy with other priorities and thus take 25 and 40 days respectively to complete the task. How long will they take to finish the task if all of them work together?
Read more at http://www.m4maths.com/user-profile.php?UID=242953#qFM06001uAqk1bU0.99

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Deven Patidar to RAKESH 9 years ago

you r too good in math...solid..can i learn technique by which you solve in very less time.

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RAKESH 9 years ago

no trick ,no shortcut only conventional method

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lakhan jain 5 years ago

Rakesh, can you suggest some good books to prepare for elitmus

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Deepak kumar kumawat 9 years ago

Thanx to M4maths to give an opportunity to enhance our knowledge

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navya sri 9 years ago

plz send me united health group practice papers to overcome my interview to repalle.navya.473@gmail.com

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VEDHA 9 years ago

hai friends. i applied for wipro . i recieved ref id and password. but board pass nt generate. shall i attend directly?

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sethupathi.s 9 years ago

A thief is spotted by a police man from a distance of 200m. When the police man start chasing the thief also starts running. If the speed of the thief be 16km/hr and that of the policeman be 20km/hr, how far the thief will have run before he is overtaken?

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animesh 7 years ago

the separation initially is 200m ,
final separation is 0m,
so,
relative distance travelled is 200m.
velocity of police is 20kmph
velocity of theif is 16kmph
relative velocity is 4kmph.
so using v=d/t
we get,
t=d/v
=> 0.2/4
=> 1/20hrs
=> (1/20)*60mins
= 3 minutes.

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THUMMALA VINEESHA 9 years ago

a+b+c+d=ac=19
a=1,c=9
b+d=9,b*d=126/9=14
therefore,d=7 and b=2
or d=2,b=7
d-a=6 or 1
But answer was given as 5
pls explain with correct reason

Reply Like? Yes (1) | No

roshni.s 9 years ago

yes, even i too have the same question.. can anyone explain how its possible??

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navya sri 9 years ago

here we have a*b*c*d=126
a*c=19
and in brackets a condition is given, by that condition we get a+b+c+d=10a+c=19
so by equating both sides we get in tens place a=1,c=9 in units place
b*d=126/9=14
b+d=9
so by solving we get the values of b &d as 7 &2 respectively
in the question they asked the diffrnce of hundreds and tens so 7-2=5.so 5 is the correct answer

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neha gupta 9 years ago

a+b+c+d=ac=19
a=1,c=9
b+d=9,b*d=126/9=14
therefore,d=7 and b=2
or d=2,b=7
d-a=6 or 1

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Gugulothu vijaykumar 9 years ago

hai how are you medam

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Tanvi joshi 9 years ago

A man spends a fixed amount per month on petrol. The trend with every hike in price of petrol is as follows:
Rs./litre : 1.5 2 3 4.5 6
Litres : 60 45 30 20 ?
What will be consumption when there price is Rs. 6 a litre?
Solution please...

Reply Like? Yes (10) | No (4)

RAKESH 9 years ago

ans 15
hike in price per litre * no. of litres = constant = 90
see, 1.5 * 60 = 2*45 = 3*30 = 4.5*20 = 6*x => x=15

Like? Yes (8) | No (1)

sonu kumar suman 9 years ago

An emergency vehicle travel 10 mile at a speed of 50 mile per hours.how fast must the vehicle travel on the return trip if the round trip travel time is to be 20 minutes.

Reply Like? Yes (4) | No (1)

shivani gupta 9 years ago

distance =10mile
speed=50mph
time=10/50=1/5 h=12min
and round trip time=2*12=24min

d=20mile and time 20 min=1/3hr
speed is =20*3=60mph
speed =60-50=10mph increase .......

Like? Yes (21) | No (22)

shivani gupta 9 years ago

distance =10mile
speed=50mph
time=10/50=1/5 h=12min
and round trip time=2*12=24min

d=20mile and time 20 min=1/3hr
speed is =20*3=60mph
speed =60-50=10mph increase .......

Like? Yes (4) | No (21)

Devendra Marghade 9 years ago

75 miles/hr.

If speed in the return trip=x miles/hr, then total travel time=20 min=1/3 hr=(10/50)+(10/x), x=75

Like? Yes (37) | No (3)

navya sri 9 years ago

explain it clearly

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padmapriya G 4 years ago

Time taken = Distance ÷ Speed

Time taken = 10 ÷ 50 = 1/5 hour

1/5 hour = 1/5 x 60 = 12 mins
Total time = 20 mins

Time for returned trip = 20 - 12 = 8 min
8 mins = 8/60 = 2/15 hour

Speed = Distance ÷ Time

Speed = 10 ÷ 2/15

Speed = 10 x 15/2

Speed = 150/2

Speed = 75 miles per hour

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K.Akhila to Shivani 9 years ago

Hi shivani .I am also 2014 passout fresher..Please will u knw whether companies hire for 2014 batch students through amcat

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K.Akhila 9 years ago

hi all,
Please let me know whether the companies like Hcl,Cognizant,accenture hire 2014 passedouts through amcat

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navya sri 9 years ago

they leave a mail through your mail id if the companies are interested through u r score in amcat

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rathna 9 years ago

Hi friends,
please share me the stuffs to prepare wipro off campus 2015 .

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navya sri to ~Sandeep~ 9 years ago

plz send me how to prepare for the interview process recently i send my resume to united health group .they will ask me to come for interview so plz tell me how to prepare for that .my email repalle.navya.473@gmail.com

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navya sri 9 years ago

plz any one send the papers if u have any idea

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maneesha john 9 years ago

a man has 3 sacks in which there is 30 coconuts each. he want to cross 30 checkpoints where he has to give 1 coconut for each sack in each checkpoint. what will be remaining in his hand if he acted wisely.

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abhimathy 9 years ago

25 coconuts will b remaining
Aftr crossing 10 checkposts he will put the coconuts into 2 sacks. Now he has 2 sacks each having 30 coconuts. Then after 25th checkpost he will tranfer the coconuts into a single sack. In the remaining 5 checkposts he will give 5 coconuts. So 25 will b remaining

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Jayesh Ghanekar to Aniruddha 9 years ago

In a certain code, the symbol for 0 is $, for 1 is Δ and for 2 is ●. There are no other symbols for all other numbers greater than 2. The numbers greater than 2 are to be written only with the help of the symbols given above. The value of 1 and 2 triples every time it shifts one place to the left. Study the following examples:
0 is written as $ 1 is written as Δ 2 is written as ●
3 is written as Δ $ 4 is written as Δ Δ 5 is written as Δ ●
6 is written as ● $ and so on
16. Which of the following will represent ● Δ $ ● Δ $?
(a) 588 (b) 593 (c) 592 (d) 591
How u got 588 plz exolain in detail

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ashutosh tiwari 9 years ago

hello friends I m new here so pls guide me

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GAMPALA SANDHYA to CHINTHAMNEEDI JANANI 9 years ago

JANANI HI THIS IS SANDHYA

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Sarala devi to CHINTHAMNEEDI JANANI 9 years ago

HI JANANI, THIS IS SARALA

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G.krishnaveni 9 years ago

hi saruuuuuuuuuuuuuuuuu

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Sarala devi to saragadam indira 9 years ago

HI INDIRA, THIS IS SARALA

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saragadam indira 9 years ago

hi sarala!*****MATHEMATICS is a great motivator for all humans.. Because its career starts with "ZERO" but it never end(INFINITY).. ***********

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PRABHU PALANISAMY 9 years ago

15 litres of chemical at ₹200 per litre is diluted with water so that cost price of diluted chemical is ₹150 per litre. Find the quantity of water in the mixture.

Reply Like? Yes (9) | No (1)

abhimathy 9 years ago

1litre of water should be mixed with 3litres of chem. So for 15litres of chem 5litres of water should b mixed

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BRIJESH KUMAR 9 years ago

The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and the difference of the digits of the number if the ratio between the digits of the number is 1 : 2 ?

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Devendra Marghade 9 years ago

8

If two-digit number=10x+y
Given, (10x+y) -(10y+x)=36 or x-y=4 ---(i) and
y/x=1/2 or x=2y ---(ii)
On solving (i) & (ii), x=8, y=4, So the number is 84
Difference between Sum and difference of the digits=(8+4)-(8-4)=8

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kapardhi 9 years ago

elitmus number system

consider p=(999^x-999^y) where x>y>0 are the natural numbers where what are possible remainders when divisible with 1000 where remainders (including 0)
A) 3 B)9 c) 99 d) above 99 remainders

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arun kumar 9 years ago

“Success is going from failure to failure without losing enthusiasm.”

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Mohit Singh 9 years ago

.Process has memory
divided into how many parts?

a.7

b.3

c.10

d.memory is undivided

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SHAKE MAHAMAD GOUSE 9 years ago

HI PRASANTH GOOD MORNING

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shanvi 9 years ago

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Shivani 9 years ago

I am 2014 pass out fresher . Can I give elitmus ? How to prepare for verbal because my verbal is so weak? For quant and reasoning which level is enough for that preparation from arun Sharma?
Thank you in advance..😊

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~Sandeep~ 9 years ago

Make use of free verbal related useful materials at below page:
http://howtoprepare4cat.blogspot.in/2008/09/study-material-englishvocab.html

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n haritha 9 years ago

Mr Roy found an old bill which shows that he brought 10 hens for Rs_67.92_ the first and the last digits were missing. what was the cost of each hen?
how to get answer for this question.

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LINGALAVARI SUPRIYA 9 years ago

hai good afternoon

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siddharth prakash singh to Ananya Maiti 9 years ago

Why do you multiplied 5,4,3,2,1 with respective terms in your last solution of Elitmus section. Please tell me
Thanx

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Ananya Maiti 9 years ago

because .. suppose raju is on 1st position and reena5th position... raju 2nd and reena 6th like this when there are 3 people in between raju and reena 5 possibilities......
when the number of people is 4 in between them then possibilities are 4.. like this
when the maxm no of people is 7 in between them only one possibility as there are 9 people in that row.....
hope u will now understand

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Ahmed Atef Eid to ~Sandeep~ 9 years ago