By working 8 hours a day. A can complete a work in 10 day. If the reduces the work hours by 3 hours per day, them he can complete the same work in ……………….. Days.

A man completes a work in 10 days by doing 5 hours per day. By doing 7 hours per day, he can complete this work in -

24 men working at 8 hours per day can do a piece of work in 15 days. In how many days can 20 men working at 9 hours per day can complete the same work?

Working 5 hours a day. A can' complete a work in 8 days and working 6 hours a day, B can complete the same work in 10 days. Working 8 hours a day, they can jointly complete the work in

Working 2 hours in a day, P can complete a work in 10 days and working 5 hours in a day, Q can complete the same work in 6 days. Working 3 hours in a day, in how many days both P and Q together can complete the same work?