The population of a city increases at the rate of 5% per annum. If the present population of the city is 370440. Its population 3 years ago was:
A sphere has a total surface area 9∏cm2. Its volume is:
At what percent above the cost price must a person mark the price of an article so that he can enjoy 20% profit after allowing 20% discount
A shopkeeper sold a TV set for INR 17940 with a discount of 8% and earned a profit of 19.6%. What should have been the percentage of profit earned if no discount was offered
The simple interest on a sum for 5 years is 3/5 th of the sum. The rate of interest per annum is:
A certain number of men complete a piece of work in 60 days. If there were 8 men more, the work can be finished in 10 days less. The number of men originally is:
