The population of a town was 160000 three years ago. If it has been increased by 3%, 2.5% and 5% in the last three years, find the present population of the town.

Rajan borrowed Rs.50000 from Rakesh at Simple Interest. After 3 years, Rakesh got Rs.3000 more than what he had given to Rajan. What was the rate of interest per annum?

Rs 1,000 invested at 10% for 5 Years. The compound Interest when compounded annually will be __________________.

Ajay lent a certain sum of money to Bhanu at 12% per annum under simple interest for 3 yr. The interest received by Ajay is less than the sum by Rs 5760. The whole sum is _________________________

Find the simple interest on Rs. 5000 at  4% p.a.

Raghu borrowed Rs. 25,000 at 20% p.a. compounded half-yearly. What amount of money will discharge his debt after one and a half year ?

A new car costs Rs 360000. Its price depreciates at the rate of 10% a year during the first two years and at the rate of 20 % a year thereafter . What will be the price of the car after 3 years?

Find the compound interest on Rs. 12000 for 3 years at 10% p.a. compounded annually.

If simple interest of a certain sum is of the sum, then what will be the rate of interest and time , if both are numerically equal ?

Find the rate at which a sum of money will double itself in 3 years, if the interest is compounded annually.