A and B can do a piece of work in 72 days, B and C can do it in 120 days and A and C can do it in 90 days. In how many d…

A, B and C can complete a work in 10, 12 and 15 days respectively. They started the work together. But A left the work 5…

A can lay railway track between two given stations in 16 days and B can do the same job in 12 days. With the help of C, …

If 2 men or 6 women or 4 boys can finish a work in 99 days, how many days will one man, one woman and one boy together t…

6 men can complete a piece of work in 12 days, 8 women can complete the same piece of work in 18 days and 18 children ca…

Two typist of varying skills can do a job in 6 minutes if they work together. If the first typist typed alone for 4 minu…

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 …

A, B and C can separately do a work in 12, 15 and 20 days respectively. They started to work together but C left after 2…