Per column inch (1 column * 1 inch) area newspaper advertisement costs Tk. 1,200. How much would a "5 columns by 3 inches" newspaper advertisement cost?

A 5% monthly salary increase resulted in a salary increase of Tk. 6,000 per year for an employee. what was her...

A cooperative collected Tk. 5,000 from its members. if each member contributed at least Tk. 240. What is the g...

If the cooperative (from the previous question) has the greatest number of members possible (with a minimum of...

In 2000, the book value of a car was 2/3rd of the original purchase price, and in 2004, its book value was 1/2...

In a cricket team scores X runs on average over N games, and then scores Y runs in the next game, then the ave...

Based on the information below, how much did a certain telephone call cost? 1. The call lasted 1 minute 27 sec...