The monthly incomes of two persons are in the ratio 4:5 and their monthly expenditures are in the ratio of 7:9. If each saves BDT 50 per month, find their monthly income.

Simple interest on a certain sum at the rate of 4.5% p.a. for 4 years and 6 years differs by BDT 216. The sum...

If the product of three consecutive integers is 210, then the sum of integers is

In a right triangle, the length of one of the legs is 3 and the length of the hypotenuse is 5. What is the len...

If x = a + and y = a – then x + y - 2x²y² = ?

The present ratio of students to teachers at a certain school is 30 to 1. If the student enrollment were to in...

A worker was hired for 7 days. Each day, he was paid Tk. 10 more than what he was paid for the previous day of...