A man does double the work done by a boy in the same time. The number of days that 3 men and 4 boys will take to finish …

Two persons having different productivity of labour, working together can reap a field in 2 days. If one-third of the fi…

A can do a piece of work in 70 days and B is 40% more efficient then A. Then the number of days taken by B to do the sa…

A can do a piece of work in 6 days. B is 25% more efficient than A. How long would B alone take to finish this work ?

A single reservoir supplies the petrol to the whole city, while the reservoir is fed by a single pipeline filling the re…

If 72 men can build a wall of 280 m length in 21 days, how many men could take 18 days to build a similar type of wall o…

A can complete a piece of work in 10 days, B in 15 days and C in 20 days. A and C together for 2 days and A was replaced…

P is thrice as good a workman as Q and therefore able to finish a job in 48 days less than Q. Working together, they can…