Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 69 · 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 ₹10000 for 3 years is ₹3300. What is the rate per year? (a) 33% (b) 12% (c) 11% (d) 10%
2. 2.The simple interest on ₹5500 for 4 years is ₹440. What is the rate per year? (a) 2% (b) 8% (c) 3% (d) 1%
3. 3.What is the simple interest on ₹1000 at 2% per year for 3 years? (a) ₹1060 (b) ₹80 (c) ₹60 (d) ₹20
4. 4.₹7000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹7140 (b) ₹7420 (c) ₹7560 (d) ₹420
5. 5.In how many years will ₹5500 earn ₹1100 simple interest at 10% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
6. 6.In how many years will ₹1000 earn ₹280 simple interest at 7% per year? (a) 5 years (b) 3 years (c) 4 years (d) 8 years
7. 7.The simple interest on ₹4000 for 3 years is ₹1320. What is the rate per year? (a) 33% (b) 12% (c) 10% (d) 11%
8. 8.The simple interest on ₹1000 for 5 years is ₹100. What is the rate per year? (a) 2% (b) 1% (c) 3% (d) 10%
9. 9.₹6000 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹1440 (b) ₹7800 (c) ₹7440 (d) ₹6360
10. 10.In how many years will ₹2000 earn ₹720 simple interest at 9% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
11. 11.What is the simple interest on ₹5500 at 8% per year for 3 years? (a) ₹440 (b) ₹6820 (c) ₹1760 (d) ₹1320
12. 12.₹10000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹11000 (b) ₹11500 (c) ₹10500 (d) ₹1000
13. 13.₹9500 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹13680 (b) ₹3135 (c) ₹12635 (d) ₹10545
14. 14.What is the simple interest on ₹8000 at 12% per year for 3 years? (a) ₹960 (b) ₹2880 (c) ₹10880 (d) ₹3840
15. 15.What is the simple interest on ₹7500 at 4% per year for 3 years? (a) ₹300 (b) ₹1200 (c) ₹900 (d) ₹8400
16. 16.The simple interest on ₹6500 for 2 years is ₹260. What is the rate per year? (a) 3% (b) 1% (c) 2% (d) 4%
17. 17.₹6500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹9100 (b) ₹2080 (c) ₹7020 (d) ₹8580
18. 18.The simple interest on ₹7000 for 5 years is ₹1750. What is the rate per year? (a) 25% (b) 5% (c) 6% (d) 4%
19. 19.The simple interest on ₹1500 for 3 years is ₹270. What is the rate per year? (a) 5% (b) 7% (c) 18% (d) 6%
20. 20.What is the simple interest on ₹6000 at 8% per year for 5 years? (a) ₹480 (b) ₹2400 (c) ₹2880 (d) ₹8400
21. 21.What is the simple interest on ₹7500 at 2% per year for 3 years? (a) ₹7950 (b) ₹450 (c) ₹150 (d) ₹600
22. 22.₹5500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹1925 (b) ₹7810 (c) ₹7425 (d) ₹5885
23. 23.The simple interest on ₹8000 for 5 years is ₹2800. What is the rate per year? (a) 8% (b) 7% (c) 6% (d) 35%
24. 24.₹5000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹2750 (b) ₹7750 (c) ₹5550 (d) ₹8300
25. 25.What is the simple interest on ₹10000 at 11% per year for 2 years? (a) ₹3300 (b) ₹12200 (c) ₹1100 (d) ₹2200
26. 26.What is the simple interest on ₹2500 at 11% per year for 2 years? (a) ₹3050 (b) ₹275 (c) ₹550 (d) ₹825
27. 27.What is the simple interest on ₹9500 at 5% per year for 4 years? (a) ₹11400 (b) ₹475 (c) ₹2375 (d) ₹1900
28. 28.The simple interest on ₹1500 for 3 years is ₹225. What is the rate per year? (a) 4% (b) 5% (c) 15% (d) 6%
29. 29.The simple interest on ₹6000 for 2 years is ₹1440. What is the rate per year? (a) 13% (b) 11% (c) 24% (d) 12%
30. 30.₹8500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹10880 (b) ₹2380 (c) ₹9095 (d) ₹11475
31. 31.In how many years will ₹4000 earn ₹600 simple interest at 3% per year? (a) 10 years (b) 5 years (c) 6 years (d) 4 years
32. 32.The simple interest on ₹6000 for 2 years is ₹960. What is the rate per year? (a) 16% (b) 7% (c) 9% (d) 8%
33. 33.What is the simple interest on ₹7500 at 10% per year for 5 years? (a) ₹750 (b) ₹11250 (c) ₹3750 (d) ₹4500
34. 34.What is the simple interest on ₹8000 at 11% per year for 3 years? (a) ₹880 (b) ₹2640 (c) ₹3520 (d) ₹10640
35. 35.The simple interest on ₹9000 for 2 years is ₹1440. What is the rate per year? (a) 8% (b) 16% (c) 7% (d) 9%
36. 36.The simple interest on ₹2000 for 4 years is ₹880. What is the rate per year? (a) 10% (b) 44% (c) 12% (d) 11%
37. 37.In how many years will ₹4000 earn ₹600 simple interest at 5% per year? (a) 3 years (b) 6 years (c) 4 years (d) 2 years
38. 38.In how many years will ₹7000 earn ₹630 simple interest at 3% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
39. 39.The simple interest on ₹9500 for 2 years is ₹1710. What is the rate per year? (a) 9% (b) 8% (c) 10% (d) 18%
40. 40.₹7000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹7210 (b) ₹7840 (c) ₹630 (d) ₹7630

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