A can do a piece of work in 4 hours, B and C together can do it in 3 hours , while A and C together can do it in 2 hours. How long will B alone take to do it?

If a person walks at 14 km/jr omstead pf 10 km /hr , he can cover 20 km more. The actual distance traveled by...

A group of students decided to collect as many paisa from each from each member of a group as is th number of...

A company owns some land and buildings for which the following details are relevant : Cost of land Taka 50,000...

A can do a piece of work in 10 days. While B alone can do it in 15 days. They work together for 5 days and the...

The average of 5 consecutive numbers is n. If the next two numbers are also included, the average will :

1 year ago the ratio between A's and B's sakary was 3:4. Rations of their individual salaries between last yea...