Question

. A B and C can do a piece of works in 10 days. 12 days and 15 days respectively. how long will they take to finish it if they work together ?​

Answer 1

Answer:

A, B, and C can do a piece of work in 12 days, 15 days, and 10 days respectively. In what time will they all together finish it?

Well let’s see how much work they can do in 1 day

A can do 1/12 of that

B can do 1/15

and C can do 1/10

So all of them working together in one day they will manage to finish

So if they work all together they will do 1/4 th of the work in one day

Therefore they will need 4 days to finish it all !