What is the simple interest on a sum of Rs. 700 if the rate of interest for the first 3 years is 8% per annum and for the last 2 years is 7.5% per annum?

What is the compound interest on Rs. 1000 at the rate of 20% per annum for 18 month when interest is compounded half yearly?

What is the principal if the interest compounded at the rate of 10% per annum for two years is Rs. 420?

In what time will Rs. 3300 becomes Rs. 3399 at 6% per annum interest compounded half-yearly?

A person purchased a car for Rs. 1,96,000 and the rate of depreciation is 14.28% per annum. What will be the value of the car after two years?

What is the rate of simple interest for the first 4 years if the sum of Rs. 360 becomes Rs. 540 in 9 years and the rate of interest for the last 5 years is 6%?

A person borrows Rs. 1500 from two moneylenders. He pays interest at the rate of 12% per annum for one loan and at the rate of 14% per annum for the other. The total interest he pays for the entire year is Rs. 186. How much does he borrow at the rate of 12%?

What will be the simple interest on Rs. 700 at 9% per annum for the period from February 5, 1994 to April 18, 1994?

Relationship between annual nominal rate of interest and annual effective rate of interest, if frequency of compounding is greater than one

In what time will the simple interest on Rs. 1750 at 9% per annum be the same as that on Rs. 2500 at 10.5% per annum in 4 years?