A does 20% less work than B. If A can finish a piece of work in `7(1)/(2)` hours, them B can finish it in

A does 20% less work than B. If A can finish a piece of work in 7(1)/(2)hours, then B can finish it in a.) 5 hours b.) (11)/2 hours c.) 6 hours d.)(13)/2 hours

8 men can finish a piece of work in 15 hours.In how many hours can 20 men finish it?

A works twice as fast as B.If both of them can together finish a piece of work in 12 hours, then B alone can do it in

A takes 12 days less than the time taken by B to finish a piece of work. If A and B together can finish it in 8 days, find the time taken by B to finish the work.

A takes 6days less than the time taken by B to finish a piece of work.If both A and B together can finish it in 4 days,find the time taken by B to finish the work.

A takes 6 days less than the time taken by B to finish a piece of work. If both A and B together can finish it in 4 days . Find the time taken by B to finish the work.

A takes 6 days less than the time taken by B to finish a piece of work.If both A and B together can finish it in 4 days.Find the time taken by B to finish the work.

A take 5 days less than the time taken by B to finish a piece of work. If both A and B together can finish it in 6 days, find the time taken by B to finist the work.

A can do 50% more work as B can do in the same time. B alone can do a piece of work in 20 hours. A, with the help of B, can finish the same work in how many hours ?