`25,000` are invested at `15%` p.a. for `1` year. Find the interest at the end of `1` year and also the amount.

A sum of Rs 1000 is invested at 8% simple interest per year. Calculate the interest at the end of each year. Do these interests form an AP? If so, find the interest at the end of 30 years making use of this fact.

Peter borrows Rs. 12,000 for 2 years at 10% p.a. compound interest. He repays Rs. 8,000 at the end of first year. Find : the amount to be paid at the end of second year, to clear the debt.

Peter borrows Rs. 12,000 for 2 years at 10% p.a. compound interest. He repays Rs. 8,000 at the end of first year. Find : the amount at the end of first year, after making the repayment.

Peter borrows Rs. 12,000 for 2 years at 10% p.a. compound interest. He repays Rs. 8,000 at the end of first year. Find : the amount at the end of first year, after making the repayment.

8,000 were invested at 5% per annum C.I. compound annually . Find : the interest for the third year.

The simple interest on a certain sum of money at 10% per annum is 6,000 in 2 years. Find the amount due at the end of 3 years and at the same rate of interest compounded annually.

A sum of Rs 10,000 is borrowed at a rate of interest 15% per annum for 2 years. Find the simple interest on this sum and the amount to be paid at the end of 2 years.

8,000 were invested at 5% per annum C.I. compounded annually . Find : the amount at the end of the second year.

A sum of Rs 1000 is invested at 8% simple interest per annum. Calculate the interest at the end of 1,\ 2,\ 3,\ ddot years. Is the sequence of interests an A.P.? Find the interest at the end of 30 years.