A can build up a wall in 8 days while B can break it in 3 days. A has worked for 4 days and then B joined to work with A…

12 monkeys can eat 12 bananas in 12 minutes. In how many minutes can 4 monkeys eat 4 bananas ?

8 men can complete a piece of work in 20 days. 8 women can complete the same work in 32 days. In how many days will 5 me…

Two pipes can fill the cistern in 10hr and 12 hr respectively, while the third empty it in 20hr. If all pipes are opened…

A and B together can do a job in 2 days; B and C can do it in 4 days; A and C in $${\text{2}}\frac{2}{5}$$ days. The nu…

A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assist…

A job can be complete by 12 men in 12 days. How many extra days will be needed to complete the job if 6 men leave after …

A can do three times the work done by B in one day. They together finish $$\frac{2}{5}$$ of the work in 9 days. The num…