P can complete a work in 12 days working 8 hours a day. Q can complete the same work in 8 days working 10 hours a day. I…

40 men can complete a piece of work in 18 days. Eight days after they started working together, 10 more men joined them.…

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…

Computer A takes 3 minutes to process an input while computer B takes 5 minutes. If computers A, B and C can process an …

P can do $$\frac{1}{4}$$ th of work in 10 days. Q can do 40% of work in 40 days and R can do $$\frac{1}{3}$$ rd of wor…

A man and a boy received Rs. 800 as wages for 5 days for the work they did together. The man's efficiency in the work wa…

A can finish a piece of work in 18 days and B can do the same work in half of the time taken by A. Then working together…

A and B together can do a piece of work in 30 days. A having worked for 16 days, B finishes the remaining work alone in …