Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 308 · 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.₹9500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹1140 (b) ₹9880 (c) ₹10640 (d) ₹11020
2. 2.₹8000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹2160 (b) ₹10880 (c) ₹8720 (d) ₹10160
3. 3.What is the simple interest on ₹6500 at 4% per year for 3 years? (a) ₹780 (b) ₹7280 (c) ₹260 (d) ₹1040
4. 4.In how many years will ₹9000 earn ₹1350 simple interest at 3% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
5. 5.The simple interest on ₹4000 for 3 years is ₹1080. What is the rate per year? (a) 10% (b) 8% (c) 9% (d) 27%
6. 6.What is the simple interest on ₹3000 at 9% per year for 3 years? (a) ₹1080 (b) ₹3810 (c) ₹270 (d) ₹810
7. 7.In how many years will ₹3500 earn ₹210 simple interest at 3% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
8. 8.The simple interest on ₹10000 for 4 years is ₹4800. What is the rate per year? (a) 12% (b) 13% (c) 11% (d) 48%
9. 9.₹3000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹120 (b) ₹3180 (c) ₹3060 (d) ₹3120
10. 10.₹2000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹80 (b) ₹2080 (c) ₹2040 (d) ₹2120
11. 11.What is the simple interest on ₹10000 at 12% per year for 2 years? (a) ₹2400 (b) ₹12400 (c) ₹3600 (d) ₹1200
12. 12.The simple interest on ₹8500 for 2 years is ₹680. What is the rate per year? (a) 3% (b) 5% (c) 4% (d) 8%
13. 13.The simple interest on ₹9000 for 3 years is ₹2700. What is the rate per year? (a) 11% (b) 9% (c) 10% (d) 30%
14. 14.In how many years will ₹4000 earn ₹160 simple interest at 2% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
15. 15.What is the simple interest on ₹6500 at 8% per year for 5 years? (a) ₹520 (b) ₹9100 (c) ₹3120 (d) ₹2600
16. 16.In how many years will ₹8000 earn ₹4000 simple interest at 10% per year? (a) 4 years (b) 5 years (c) 6 years (d) 10 years
17. 17.₹9500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹11400 (b) ₹9975 (c) ₹10925 (d) ₹1425
18. 18.What is the simple interest on ₹1000 at 2% per year for 4 years? (a) ₹1080 (b) ₹100 (c) ₹80 (d) ₹20
19. 19.₹1500 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹2310 (b) ₹1635 (c) ₹2175 (d) ₹675
20. 20.In how many years will ₹9500 earn ₹3800 simple interest at 8% per year? (a) 6 years (b) 4 years (c) 5 years (d) 10 years
21. 21.What is the simple interest on ₹8500 at 11% per year for 5 years? (a) ₹935 (b) ₹5610 (c) ₹13175 (d) ₹4675
22. 22.The simple interest on ₹3000 for 5 years is ₹1050. What is the rate per year? (a) 7% (b) 8% (c) 6% (d) 35%
23. 23.What is the simple interest on ₹8000 at 5% per year for 2 years? (a) ₹400 (b) ₹8800 (c) ₹1200 (d) ₹800
24. 24.The simple interest on ₹7500 for 5 years is ₹2625. What is the rate per year? (a) 35% (b) 6% (c) 7% (d) 8%
25. 25.In how many years will ₹9000 earn ₹1980 simple interest at 11% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
26. 26.In how many years will ₹1500 earn ₹240 simple interest at 4% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
27. 27.In how many years will ₹1000 earn ₹360 simple interest at 12% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
28. 28.What is the simple interest on ₹2500 at 7% per year for 3 years? (a) ₹3025 (b) ₹700 (c) ₹175 (d) ₹525
29. 29.What is the simple interest on ₹8000 at 7% per year for 3 years? (a) ₹560 (b) ₹2240 (c) ₹1680 (d) ₹9680
30. 30.What is the simple interest on ₹2500 at 5% per year for 2 years? (a) ₹125 (b) ₹375 (c) ₹250 (d) ₹2750
31. 31.The simple interest on ₹1500 for 5 years is ₹300. What is the rate per year? (a) 5% (b) 20% (c) 3% (d) 4%
32. 32.In how many years will ₹7500 earn ₹675 simple interest at 3% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
33. 33.What is the simple interest on ₹7500 at 11% per year for 5 years? (a) ₹4125 (b) ₹4950 (c) ₹825 (d) ₹11625
34. 34.The simple interest on ₹3500 for 2 years is ₹210. What is the rate per year? (a) 6% (b) 4% (c) 3% (d) 2%
35. 35.What is the simple interest on ₹9500 at 2% per year for 2 years? (a) ₹190 (b) ₹9880 (c) ₹570 (d) ₹380
36. 36.₹2500 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹4150 (b) ₹2775 (c) ₹1375 (d) ₹3875
37. 37.In how many years will ₹3000 earn ₹630 simple interest at 7% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
38. 38.What is the simple interest on ₹4000 at 2% per year for 2 years? (a) ₹4160 (b) ₹160 (c) ₹80 (d) ₹240
39. 39.What is the simple interest on ₹6500 at 3% per year for 4 years? (a) ₹780 (b) ₹195 (c) ₹975 (d) ₹7280
40. 40.In how many years will ₹4000 earn ₹360 simple interest at 3% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years

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