The ratio of the age of a man and his wife is 4:3. At the time of their marriage the ratio was 5:3 and after 4 years this ratio will become 9:7. How many years ago were they married?

The area of a rectangular plot is 460 square metres, if the lenght is 15% more than the breadth, what is the b...

Hasib took a loan of 1400 tk with simple interest for as many years as the rate of interest. If he paid 126 th...

A batsman makes a score of 87 runs in the 17th ining and thus increases his average by 3. What is his average...

Two student appeared at an examination. One of them secured 9 makes more than the other and his marks was 56%...

A die is rolled twice. What is the probability of getting a sum equal to 9?

Two tanks A and B are filled with petrol. Tank A holds 600 liters more than B. If 100 liters of petrol were ta...