The amount of time that three secretaries worked on a special project are in the ratio of 1 to 2 to 5. If they worked a combined total of 112 hours, how many hours did the secretary, who worked the longest spend on the project?

The ratio of the length to the width of a rectangular advertising display is approximately 3.3 to 2. If the wi...

A gym class can be divided unto 8 teams with an equal number of players on each team or into 12 teams with an...

A retail appliance store priced a video recorder at 20 precent above the wholesale cost of Tk. 200. If a store...

A bag contains 7 red, 9 yellow and 3 black balls. If a ball is picked at random, what is the probability that...

Committee X has 4 members, committees Y has 5 members, and these committees have no members in common. If a ta...

As a salesperson, Poly can choose one of two methods of annual payment either an annual salary of Tk. 35,000 w...