A sum of Rs. 400 is lent for 3 years at the rate of 6% per annum. Find the interest.

A sum of Rs 4000 is lent for 5 years at the rate of 15% per annum. Find the interest.

A sum of Rs 800 is lent for one year at the rate of 18% per annum. Find the interest.

A sum of Rs4000 is lent for 5 years at the rate of 15% per annum.Find the interest.

A sum of Rs4000 is lent for 5 years at the rate of 15% per annum.Find the interest.

A sum of Rs 800is lent for one year at the rate of 18% per annum.Find the interest.

A sum of Rs. 400 is lent at the rate of 5% per annum. Find the interest at the end of 2 years.

A sum of Rs.400 is lent at the rate of 5% per annum.Find the interest at the end of 2 years.

If Rs. 300 is the interest paid on a certain sum at the rate of 5% per annum simple interest for a period of 5 years, then find the sum. (in Rs. )