SI & CI: TEST

1. Find the simple interest on rs 18000 for  5 years at 17%.
2. Find the compound interest on rs 25000 for 2 years at 20%.
3. In how many years will a sum of money become five times at 20% p.a. simple interest.
4. A certain sum of money amounts to rs 3080 in 3 yrs and rs 3400 in 5 yrs. What is the sum? 
5. What is the compound interest on rs 20000 for 9 months at 40% p.a. compounded quarterly?
6. The compound and simple interests on a certain sum for 2 yrs are rs11,730 and rs 10,200. Find rate of interest.
7.How long will it take for a sum of money to grow from rs 1250 to rs 10,000, if it is invested at            12.5% p.a simple interest?
8. A sum of money becomes 27 times itself in 3 years at CI. Find the rate of interest .
9. A sum becomes double in 3 years at SI. In how many years will the sum become 10 times?
10. A sum becomes double in 3 years at CI. In how many years will the sum become 32 times?
11. If rs.4000 becomes rs. 4560 in 2 years time,what will rs 5000 become at the end of 10 years at the same rate of interest under simple interest?
12. If rs. 10000 has been lent at 10% p.a the interest being compounded annually, what is the interest for the 3rd year?
13. What is the effective rate of interest, if the nominal rate of interest is 20% per annum and the interest is compounded every six months?
14. The difference between the interest earned under SI and CI, interest being compounded annually, for two years for the same sum and at the same interest rate of 12% p.a is rs 43.20. Find the sum.
15. If rs. 10000 has been lent at 10% p.a the interest being compounded annually, what is the interest for 3 years?

S-BATCH