Q1. Find the amount of Rs. 8000 in 3/2 years at 5% per annum compound interest payable half-yearly.
Q2. Find the compound interest on Rs. 4000 at 24% per annum for 3 months, compounded monthly.
Q3. Annu invests Rs. 5000 in a bond which gives interest at 4% per annum during the first year, 5% during the second year and 10% during the third year. How much does she get at the end of the third year?
Q4. What will be the compound interest on Rs 15625 for 5/2 years at 4% per annum?
Q5. What will be the difference between simple and compound interest on a sum of Rs. 4500 put for 2 years at 5% per annum?
Q6. If the difference between the compound interest and simple interest on a certain sum of money for 3 years at 5% per annum is Rs. 61, find the sum.
Q7. A sum of money placed at compound interest doubles in 3 years. In how many years will it become four times?
Q8. A sum of money at compound interest amounts to Rs. 4050 in one year and to Rs. 4723.92 in 3 years. Find the rate of interest per annum.
Q9. If a sum of Rs. 13040 is to be paid back in two equal annual installments at 15/4% per annum, what is the amount of each installment?
Q10. In how many years will a sum of Rs. 800 at 10% per annum compound interest, compounded semiannually becomes 926.10?
(b) 1 2/2
(c) 2 1/3
(d) 2 1/2
Q11. Kruti took a loan at simple interest rate of 6% in the first year with a increase of 0.5% in each subsequent year. She paid interest of Rs. 3375 after four years. How much loan did she take?
(a) Rs. 12500
(b) Rs. 33250
(c) Rs. 15800
(d) Cannot be determined
Q12. A person takes Rs. 10,000 loan at the rate of 10% interest compounding yearly for the period of 4 years. How much interest he has to pay?
(a) Rs. 4,371
(b) Rs. 4,581
(c) Rs. 14,641
(d) Rs. 4,641
Q13.A man borrows money at 3% per annum interest payable yearly and lend it immediately at 5% interest (compound) payable half-yearly and thereby gains Rs. 330 at the end of the year. The sum borrowed is:
(a) Rs. 17,000
(b) Rs. 16,500
(c) Rs. 15,000
(d) Rs. 16,000
Q14. If a sum of money compound annually becomes 1.44 times of itself in 2 years, then the rate of interest per annum is:
Q15. A sum of money lent at compound interest amounts to Rs. 1460 in 2 years and to Rs. 1606 in 3 years. The rate of interest per annum is: