If a piece of work is finished in 4 days,what part of the work is finished in 1 day

A can do a piece of work in 10 days and B in 15 days. How long will they take to finish it working together ?

A can do a piece of work in 20 days and B in 15 days. With help of C, they finish the work in 5 days. C can alone do the work in

If 40 men can finish a piece of work in 26 days, how many men will be required to finish it in 20 days?

Suresh can finish a piece of work by himself in 42 days. Mahesh, who is 1/5 times more efficient as Suresh, requires X days to finish the work by working all by himself. Then what is the value of X ?

A can finish a work in 15 days and B can do the same work in twice the time taken by A. then, working together, what part of the same work they can finish in five days?

40 men can finish a piece of work in 26 days. How many men will be needed to finish it in 16 days?

40 men can finish a piece of work in 26 days. How many men will be needed to finish it in 16 days?

40 men can finish a piece of work in 26 days. How many men will be needed to finish it in 16 days?