Question

A,B and C can do a piece of work in 16 days, 12 days and 15 days respectively. How long will they take to finish it if they work together​

Answer 1

Answer:

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

112+115+110=

560+460+660=

1560=14

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 !