If 75% students of a class answered the first question in a test correctly, 55% answered the second question correctly and 20% answered neither of the questions correctly, what percent answered both the questions correctly?

Four persons can complete a job in 8 days. After four days two persons have left the work. How many days would...

If a merchant offers a discount of 30% on the list price, then he/she makes a loss of 16% what % profit or los...

How many 1-inch square tiles would it take to cover the floor of a closet dial has dimensions 5 feet by 4 feet...

A train traveling at 100 km per hour overtakes a motorbike traveling at a speed of 65 km per hour in 40 second...

Two numbers are in the ratio 5:4 and their difference is 10. What is the largest number?

The average daily wage of 10 workers is Tk. 400. If the lowest wage is Tk. 300 what is the possible maximum wa...