Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 442 · 40 questions

How to solve it (P × R × T ÷ 100): Simple interest = P × R × T ÷ 100 (P = principal, R = rate % per year, T = years). Amount = principal + interest. Rate = SI × 100 ÷ (P × T); time = SI × 100 ÷ (P × R).

1. 1.The simple interest on ₹3000 for 3 years is ₹990. What is the rate per year? (a) 10% (b) 33% (c) 12% (d) 11%
2. 2.The simple interest on ₹9000 for 2 years is ₹2160. What is the rate per year? (a) 11% (b) 12% (c) 13% (d) 24%
3. 3.What is the simple interest on ₹2000 at 4% per year for 5 years? (a) ₹80 (b) ₹480 (c) ₹400 (d) ₹2400
4. 4.₹5500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹6160 (b) ₹5720 (c) ₹440 (d) ₹5940
5. 5.₹1500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹900 (b) ₹2400 (c) ₹2580 (d) ₹1680
6. 6.In how many years will ₹9000 earn ₹2700 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
7. 7.₹1500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹1725 (b) ₹1575 (c) ₹150 (d) ₹1650
8. 8.The simple interest on ₹7500 for 4 years is ₹2400. What is the rate per year? (a) 7% (b) 32% (c) 9% (d) 8%
9. 9.What is the simple interest on ₹3500 at 6% per year for 5 years? (a) ₹4550 (b) ₹1260 (c) ₹210 (d) ₹1050
10. 10.In how many years will ₹8500 earn ₹4250 simple interest at 10% per year? (a) 5 years (b) 6 years (c) 4 years (d) 10 years
11. 11.In how many years will ₹10000 earn ₹6000 simple interest at 12% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
12. 12.In how many years will ₹1000 earn ₹240 simple interest at 8% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
13. 13.The simple interest on ₹2500 for 2 years is ₹250. What is the rate per year? (a) 6% (b) 5% (c) 4% (d) 10%
14. 14.In how many years will ₹8500 earn ₹2040 simple interest at 8% per year? (a) 3 years (b) 6 years (c) 4 years (d) 2 years
15. 15.In how many years will ₹7500 earn ₹1875 simple interest at 5% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
16. 16.The simple interest on ₹9500 for 3 years is ₹1425. What is the rate per year? (a) 4% (b) 6% (c) 5% (d) 15%
17. 17.₹8000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹8960 (b) ₹8320 (c) ₹640 (d) ₹8640
18. 18.What is the simple interest on ₹1500 at 3% per year for 2 years? (a) ₹90 (b) ₹135 (c) ₹1590 (d) ₹45
19. 19.The simple interest on ₹7500 for 2 years is ₹300. What is the rate per year? (a) 4% (b) 2% (c) 3% (d) 1%
20. 20.What is the simple interest on ₹3500 at 9% per year for 2 years? (a) ₹945 (b) ₹630 (c) ₹315 (d) ₹4130
21. 21.What is the simple interest on ₹10000 at 8% per year for 2 years? (a) ₹800 (b) ₹1600 (c) ₹2400 (d) ₹11600
22. 22.₹9000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹10080 (b) ₹10350 (c) ₹1080 (d) ₹9270
23. 23.₹2000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹2600 (b) ₹500 (c) ₹2500 (d) ₹2100
24. 24.The simple interest on ₹5000 for 3 years is ₹300. What is the rate per year? (a) 2% (b) 6% (c) 3% (d) 1%
25. 25.In how many years will ₹7000 earn ₹3500 simple interest at 10% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
26. 26.The simple interest on ₹2500 for 4 years is ₹400. What is the rate per year? (a) 3% (b) 4% (c) 5% (d) 16%
27. 27.₹9500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹14060 (b) ₹3420 (c) ₹10640 (d) ₹12920
28. 28.What is the simple interest on ₹4500 at 2% per year for 5 years? (a) ₹4950 (b) ₹540 (c) ₹90 (d) ₹450
29. 29.What is the simple interest on ₹7500 at 10% per year for 5 years? (a) ₹3750 (b) ₹11250 (c) ₹4500 (d) ₹750
30. 30.What is the simple interest on ₹7500 at 5% per year for 2 years? (a) ₹375 (b) ₹1125 (c) ₹8250 (d) ₹750
31. 31.What is the simple interest on ₹6500 at 2% per year for 4 years? (a) ₹130 (b) ₹650 (c) ₹7020 (d) ₹520
32. 32.₹3500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹4200 (b) ₹3640 (c) ₹4340 (d) ₹700
33. 33.₹6500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹6890 (b) ₹8060 (c) ₹1560 (d) ₹8450
34. 34.The simple interest on ₹5000 for 4 years is ₹1600. What is the rate per year? (a) 32% (b) 9% (c) 8% (d) 7%
35. 35.₹9000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹1890 (b) ₹11520 (c) ₹10890 (d) ₹9630
36. 36.The simple interest on ₹5500 for 5 years is ₹550. What is the rate per year? (a) 1% (b) 2% (c) 10% (d) 3%
37. 37.₹6500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹7930 (b) ₹7215 (c) ₹8645 (d) ₹1430
38. 38.In how many years will ₹1000 earn ₹60 simple interest at 3% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
39. 39.What is the simple interest on ₹5000 at 9% per year for 3 years? (a) ₹1350 (b) ₹6350 (c) ₹1800 (d) ₹450
40. 40.The simple interest on ₹2500 for 4 years is ₹700. What is the rate per year? (a) 6% (b) 8% (c) 28% (d) 7%

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