Wednesday
October 1, 2014

Homework Help: maths

Posted by Ramesh Reddy on Sunday, September 4, 2011 at 12:36pm.

Please guide me to solve the below problem:

'A'an do 2/3 of a work in 40 days.'B'can do 1/2 of the work in 75 days.'C'can do 3/4of work in 75 days.If all them together work in how many days will they do 5/6 0f the work.

I had solved the above problem like this:

A can do the work=3/2*40=60 days.
A's one day work =1/60

B can do the work=2/1*75=150 days
B's one day work=1/150

C can do the work=4/3*75=100 days.
C's one day the work=1/100

They together=1/60+1/150+1/100
=5+2+3/100
=10/300=1/30
They complete the 5/6 of the work =1/30*5/6
=1/36

Therefore ,they complete the 5/6 of the work in 36 days.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

time n work - a and b together can do a piece of work in16 days.b and c can do ...
Math - Ok I need help to figure out how to solve this problem 4 working move ...
maths - A completes a works in 15 days and B completes the same work in 20 days...
math - A and B can finsih a work in 16 days and 12 days respectively. A started ...
maths - A and B together can do a piece of work in 12 days; B and C together can...
maths - A and B together can do a piece of work in 12 days; B and C together can...
Math - Okay i stuck on a problem can anyone help? There are 14 people total.7 ...
maths - 300 men were engaged to complete a job in a certain number of days. but ...
math - Sara has gone to work for 60 days. On 39 of those days she arrived at ...
Math - 1) 60 meters of fencing are needed to fence in a square lot. What is the ...

Search
Members