Simple Interest...

Two investments of `500 and `1500 have a combined yearly return of 8.5% of the total of the two investments. If the `500 investment has a yearly return of 7%, what per cent yearly return does the `1,500 investment have?

A family made a down payment of `75 and borrowed a set of encyclopaedias that cost `400. The balance with interest was paid in 23 monthly payments of `16 each and a final payment of `9. The amount of interest paid was what per cent of the amount borrowed?

The difference between the interests received from two different banks on ₹500 for 2 years is ₹2.50. The difference between their rates is

A sum of ₹3,500 is lent for 5 years at 5% p.a. SI. The interest accrued and the amount to be repaid are respectively

In what time, a sum of money will triple itself at SI 20% p.a.?

What will be the CI on ₹1,000 for 3 years at 10% p.a.?

Find the difference between SI and CI on ₹700 at the rate of 10% for 3 years?

SI on a sum of money is one-fourth of principal. The number of years is equal to the rate of interest. Find the rate of interest.

If CI for a certain sum for 2 years at 2% p.a. be ₹1,010, what is the principal?

If CI for a certain sum at 3% for 2 years is ₹203, what would be the SI for the same period and at the same rate?