Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 132 · 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 ₹1500 for 5 years is ₹600. What is the rate per year? (a) 7% (b) 40% (c) 8% (d) 9%
2. 2.In how many years will ₹8500 earn ₹850 simple interest at 2% per year? (a) 4 years (b) 5 years (c) 6 years (d) 10 years
3. 3.The simple interest on ₹1500 for 3 years is ₹450. What is the rate per year? (a) 30% (b) 11% (c) 9% (d) 10%
4. 4.₹7000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹1260 (b) ₹8260 (c) ₹8680 (d) ₹7420
5. 5.What is the simple interest on ₹3500 at 11% per year for 4 years? (a) ₹1540 (b) ₹1925 (c) ₹5040 (d) ₹385
6. 6.The simple interest on ₹1000 for 2 years is ₹60. What is the rate per year? (a) 3% (b) 2% (c) 6% (d) 4%
7. 7.The simple interest on ₹7000 for 5 years is ₹700. What is the rate per year? (a) 3% (b) 2% (c) 1% (d) 10%
8. 8.The simple interest on ₹1000 for 5 years is ₹250. What is the rate per year? (a) 6% (b) 5% (c) 4% (d) 25%
9. 9.In how many years will ₹7000 earn ₹560 simple interest at 2% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
10. 10.What is the simple interest on ₹2500 at 9% per year for 4 years? (a) ₹3400 (b) ₹225 (c) ₹900 (d) ₹1125
11. 11.What is the simple interest on ₹3000 at 4% per year for 2 years? (a) ₹120 (b) ₹3240 (c) ₹240 (d) ₹360
12. 12.₹9500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹10260 (b) ₹11020 (c) ₹1520 (d) ₹11780
13. 13.What is the simple interest on ₹2500 at 4% per year for 3 years? (a) ₹400 (b) ₹100 (c) ₹300 (d) ₹2800
14. 14.₹1500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹1800 (b) ₹1875 (c) ₹1575 (d) ₹300
15. 15.₹5000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹7000 (b) ₹7500 (c) ₹5500 (d) ₹2000
16. 16.₹4500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹5445 (b) ₹5760 (c) ₹945 (d) ₹4815
17. 17.What is the simple interest on ₹1500 at 11% per year for 5 years? (a) ₹990 (b) ₹165 (c) ₹2325 (d) ₹825
18. 18.In how many years will ₹1000 earn ₹360 simple interest at 12% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
19. 19.The simple interest on ₹1500 for 3 years is ₹405. What is the rate per year? (a) 10% (b) 27% (c) 9% (d) 8%
20. 20.₹9500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹10450 (b) ₹13300 (c) ₹2850 (d) ₹12350
21. 21.What is the simple interest on ₹3500 at 2% per year for 3 years? (a) ₹70 (b) ₹280 (c) ₹210 (d) ₹3710
22. 22.In how many years will ₹3000 earn ₹1080 simple interest at 12% per year? (a) 6 years (b) 3 years (c) 4 years (d) 2 years
23. 23.The simple interest on ₹2500 for 2 years is ₹450. What is the rate per year? (a) 8% (b) 9% (c) 10% (d) 18%
24. 24.The simple interest on ₹9000 for 5 years is ₹5400. What is the rate per year? (a) 60% (b) 12% (c) 11% (d) 13%
25. 25.₹7000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹3360 (b) ₹11200 (c) ₹10360 (d) ₹7840
26. 26.In how many years will ₹2000 earn ₹720 simple interest at 9% per year? (a) 5 years (b) 8 years (c) 3 years (d) 4 years
27. 27.The simple interest on ₹8500 for 3 years is ₹2040. What is the rate per year? (a) 9% (b) 7% (c) 8% (d) 24%
28. 28.What is the simple interest on ₹5000 at 2% per year for 2 years? (a) ₹5200 (b) ₹200 (c) ₹300 (d) ₹100
29. 29.The simple interest on ₹1000 for 5 years is ₹550. What is the rate per year? (a) 11% (b) 12% (c) 55% (d) 10%
30. 30.What is the simple interest on ₹2000 at 3% per year for 2 years? (a) ₹60 (b) ₹180 (c) ₹2120 (d) ₹120
31. 31.What is the simple interest on ₹1000 at 7% per year for 3 years? (a) ₹280 (b) ₹1210 (c) ₹210 (d) ₹70
32. 32.In how many years will ₹8000 earn ₹4400 simple interest at 11% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
33. 33.₹3500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹4060 (b) ₹3640 (c) ₹560 (d) ₹4200
34. 34.The simple interest on ₹2500 for 4 years is ₹300. What is the rate per year? (a) 12% (b) 4% (c) 2% (d) 3%
35. 35.The simple interest on ₹7500 for 4 years is ₹1800. What is the rate per year? (a) 7% (b) 24% (c) 5% (d) 6%
36. 36.What is the simple interest on ₹6000 at 12% per year for 4 years? (a) ₹8880 (b) ₹720 (c) ₹3600 (d) ₹2880
37. 37.₹7500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹8400 (b) ₹7650 (c) ₹8250 (d) ₹750
38. 38.In how many years will ₹4000 earn ₹1440 simple interest at 9% per year? (a) 3 years (b) 4 years (c) 5 years (d) 8 years
39. 39.₹5000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹5150 (b) ₹5600 (c) ₹600 (d) ₹5750
40. 40.₹10000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹10900 (b) ₹10300 (c) ₹900 (d) ₹11200

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