Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 642 · 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 ₹2000 for 3 years is ₹420. What is the rate per year? (a) 8% (b) 21% (c) 7% (d) 6%
2. 2.₹4000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹400 (b) ₹4200 (c) ₹4600 (d) ₹4400
3. 3.What is the simple interest on ₹5500 at 11% per year for 4 years? (a) ₹7920 (b) ₹3025 (c) ₹605 (d) ₹2420
4. 4.In how many years will ₹3500 earn ₹1925 simple interest at 11% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
5. 5.In how many years will ₹5000 earn ₹750 simple interest at 3% per year? (a) 5 years (b) 10 years (c) 6 years (d) 4 years
6. 6.₹6000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹2880 (b) ₹6720 (c) ₹9600 (d) ₹8880
7. 7.What is the simple interest on ₹3000 at 4% per year for 4 years? (a) ₹3480 (b) ₹120 (c) ₹600 (d) ₹480
8. 8.What is the simple interest on ₹5000 at 5% per year for 2 years? (a) ₹750 (b) ₹250 (c) ₹5500 (d) ₹500
9. 9.The simple interest on ₹8000 for 3 years is ₹1680. What is the rate per year? (a) 21% (b) 8% (c) 6% (d) 7%
10. 10.The simple interest on ₹6500 for 2 years is ₹390. What is the rate per year? (a) 4% (b) 2% (c) 3% (d) 6%
11. 11.₹2000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹2840 (b) ₹2140 (c) ₹2700 (d) ₹700
12. 12.In how many years will ₹1000 earn ₹450 simple interest at 9% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
13. 13.What is the simple interest on ₹1500 at 9% per year for 5 years? (a) ₹2175 (b) ₹675 (c) ₹135 (d) ₹810
14. 14.The simple interest on ₹2000 for 3 years is ₹240. What is the rate per year? (a) 12% (b) 5% (c) 3% (d) 4%
15. 15.The simple interest on ₹1000 for 3 years is ₹90. What is the rate per year? (a) 4% (b) 3% (c) 9% (d) 2%
16. 16.What is the simple interest on ₹3000 at 12% per year for 5 years? (a) ₹360 (b) ₹2160 (c) ₹4800 (d) ₹1800
17. 17.The simple interest on ₹3000 for 2 years is ₹120. What is the rate per year? (a) 4% (b) 1% (c) 2% (d) 3%
18. 18.What is the simple interest on ₹9500 at 8% per year for 2 years? (a) ₹760 (b) ₹2280 (c) ₹11020 (d) ₹1520
19. 19.What is the simple interest on ₹9500 at 9% per year for 5 years? (a) ₹13775 (b) ₹4275 (c) ₹855 (d) ₹5130
20. 20.In how many years will ₹6500 earn ₹2080 simple interest at 8% per year? (a) 3 years (b) 4 years (c) 8 years (d) 5 years
21. 21.What is the simple interest on ₹6000 at 5% per year for 3 years? (a) ₹300 (b) ₹1200 (c) ₹6900 (d) ₹900
22. 22.The simple interest on ₹4500 for 2 years is ₹630. What is the rate per year? (a) 14% (b) 7% (c) 8% (d) 6%
23. 23.What is the simple interest on ₹9500 at 12% per year for 5 years? (a) ₹1140 (b) ₹5700 (c) ₹6840 (d) ₹15200
24. 24.What is the simple interest on ₹7500 at 11% per year for 2 years? (a) ₹1650 (b) ₹2475 (c) ₹825 (d) ₹9150
25. 25.The simple interest on ₹2000 for 3 years is ₹480. What is the rate per year? (a) 24% (b) 9% (c) 7% (d) 8%
26. 26.In how many years will ₹1500 earn ₹150 simple interest at 5% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
27. 27.The simple interest on ₹4500 for 3 years is ₹1350. What is the rate per year? (a) 9% (b) 11% (c) 10% (d) 30%
28. 28.What is the simple interest on ₹5000 at 7% per year for 4 years? (a) ₹1400 (b) ₹350 (c) ₹1750 (d) ₹6400
29. 29.₹8000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹1280 (b) ₹9280 (c) ₹8640 (d) ₹9920
30. 30.₹8500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹9265 (b) ₹12325 (c) ₹3060 (d) ₹11560
31. 31.₹1500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹210 (b) ₹1815 (c) ₹1605 (d) ₹1710
32. 32.What is the simple interest on ₹2000 at 3% per year for 2 years? (a) ₹180 (b) ₹2120 (c) ₹60 (d) ₹120
33. 33.What is the simple interest on ₹9500 at 3% per year for 5 years? (a) ₹1425 (b) ₹10925 (c) ₹285 (d) ₹1710
34. 34.In how many years will ₹3000 earn ₹180 simple interest at 2% per year? (a) 3 years (b) 6 years (c) 2 years (d) 4 years
35. 35.What is the simple interest on ₹7500 at 7% per year for 4 years? (a) ₹2100 (b) ₹9600 (c) ₹525 (d) ₹2625
36. 36.₹2000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹560 (b) ₹2140 (c) ₹2700 (d) ₹2560
37. 37.What is the simple interest on ₹4000 at 7% per year for 5 years? (a) ₹5400 (b) ₹280 (c) ₹1400 (d) ₹1680
38. 38.The simple interest on ₹10000 for 5 years is ₹3000. What is the rate per year? (a) 7% (b) 5% (c) 6% (d) 30%
39. 39.In how many years will ₹2000 earn ₹240 simple interest at 4% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
40. 40.What is the simple interest on ₹6000 at 6% per year for 4 years? (a) ₹7440 (b) ₹360 (c) ₹1800 (d) ₹1440

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