Q1. Rs. 480 becomes Rs. 600 in 4 years at a certain rate of compound interest. What will be the sum after 12 years?
(c) Rs. 904.25
(d) Rs. 937.5
Q2. At what rate percent on the compound interest, does a sum of money become four fold in 2 year?
Q3. A sum of money placed at compound interest thrice itself in 5 years. In how many years will it amount to 81 times itself?
Q4. Rs. 2400 becomes Rs. 3000 in 3 years at a certain rate of compound interest. What will be the sum after 6 years?
Q5. Find the difference between the compound interest and the simple interest for the sum of Rs. 2500 at 6% per annum for 2 years.
Q6. On what sum will the difference between the simple and compound interest for 3 years at 5 percent per annum amount to Rs. 24.40?
Q7. The compound interest on a certain sum of money for 2 years at 10% per annum is Rs. 630. Find the simple interest at the same rate and for the same time.
Q8. Find the ratio of C.I. and S.I. for 2 year at 4 p.c.p.a.
Q9. What amount will be received on a sum of Rs. 1750 in 12.5 years, if the interest is compounded at the rate of 8% pa?
(a) Rs. 2125
(b) Rs. 2122.85
(c) Rs. 2100
(d) Rs. 2200
Q10. The principal which gives Rs. 1 interest per day at a rate of 5% simple interest per annum is-
(a) Rs. 7300
(b) Rs. 3650
(c) Rs. 5000
(d) Rs. 36500
Q11. The simple interest on Rs. 4,000 in 3 years at the rate of x% per annum equals simple interest on Rs. 5,000 at the rate of 12% per annum in 2 years. The value of x is-
Q12. A sum becomes 6 fold at 5%(Simple Interest) per annum. At what rate, the sum becomes 12 fold?
Q13. A person lent out a certain sum on simple interest and the same sum on compound interest at a certain rate of interest per annum. He noticed that the ratio between the difference of compound interest and simple interest of 3 years and that of 2 years is 25 : 8. The rate of interest per annum is:
Q14. At a simple interest a sum amounts to Rs. 1012 in 2.5 year and become Rs. 1067.20 in 4 years. What is the rate of interest?
Q15. What will be simple interest for 1 year and 4 months on a sum of Rs. 25800 at the rate of 14% per annum?
(a) Rs. 4816
(b) Rs. 2580
(c) Rs. 4816.75
(d) Rs. 4815