Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 386 · 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.In how many years will ₹8500 earn ₹1020 simple interest at 4% per year? (a) 4 years (b) 3 years (c) 6 years (d) 2 years
2. 2.The simple interest on ₹7000 for 3 years is ₹2310. What is the rate per year? (a) 11% (b) 12% (c) 33% (d) 10%
3. 3.What is the simple interest on ₹1500 at 2% per year for 2 years? (a) ₹90 (b) ₹1560 (c) ₹30 (d) ₹60
4. 4.₹3000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹3810 (b) ₹540 (c) ₹3270 (d) ₹3540
5. 5.The simple interest on ₹8000 for 4 years is ₹960. What is the rate per year? (a) 2% (b) 3% (c) 4% (d) 12%
6. 6.The simple interest on ₹9500 for 4 years is ₹1900. What is the rate per year? (a) 6% (b) 20% (c) 4% (d) 5%
7. 7.In how many years will ₹5500 earn ₹2200 simple interest at 8% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
8. 8.In how many years will ₹3500 earn ₹1260 simple interest at 12% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
9. 9.What is the simple interest on ₹1500 at 7% per year for 3 years? (a) ₹105 (b) ₹420 (c) ₹315 (d) ₹1815
10. 10.The simple interest on ₹7500 for 3 years is ₹2250. What is the rate per year? (a) 9% (b) 11% (c) 10% (d) 30%
11. 11.The simple interest on ₹8000 for 4 years is ₹3520. What is the rate per year? (a) 12% (b) 44% (c) 10% (d) 11%
12. 12.₹5500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹5995 (b) ₹7480 (c) ₹7975 (d) ₹1980
13. 13.₹4000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹5080 (b) ₹720 (c) ₹4360 (d) ₹4720
14. 14.The simple interest on ₹4000 for 4 years is ₹1120. What is the rate per year? (a) 8% (b) 6% (c) 28% (d) 7%
15. 15.What is the simple interest on ₹9500 at 4% per year for 5 years? (a) ₹1900 (b) ₹380 (c) ₹11400 (d) ₹2280
16. 16.In how many years will ₹2000 earn ₹1200 simple interest at 12% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
17. 17.In how many years will ₹10000 earn ₹1400 simple interest at 7% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
18. 18.What is the simple interest on ₹7000 at 7% per year for 2 years? (a) ₹490 (b) ₹7980 (c) ₹1470 (d) ₹980
19. 19.The simple interest on ₹9500 for 2 years is ₹1520. What is the rate per year? (a) 8% (b) 7% (c) 9% (d) 16%
20. 20.What is the simple interest on ₹1500 at 3% per year for 2 years? (a) ₹90 (b) ₹45 (c) ₹135 (d) ₹1590
21. 21.The simple interest on ₹10000 for 2 years is ₹1200. What is the rate per year? (a) 5% (b) 7% (c) 6% (d) 12%
22. 22.₹3500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹3815 (b) ₹315 (c) ₹3920 (d) ₹3605
23. 23.In how many years will ₹3000 earn ₹420 simple interest at 7% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
24. 24.₹2000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹300 (b) ₹2100 (c) ₹2400 (d) ₹2300
25. 25.What is the simple interest on ₹5000 at 5% per year for 3 years? (a) ₹250 (b) ₹5750 (c) ₹750 (d) ₹1000
26. 26.What is the simple interest on ₹6000 at 6% per year for 4 years? (a) ₹1440 (b) ₹360 (c) ₹7440 (d) ₹1800
27. 27.The simple interest on ₹3500 for 5 years is ₹700. What is the rate per year? (a) 3% (b) 5% (c) 4% (d) 20%
28. 28.What is the simple interest on ₹8000 at 7% per year for 4 years? (a) ₹560 (b) ₹2800 (c) ₹2240 (d) ₹10240
29. 29.In how many years will ₹8000 earn ₹1200 simple interest at 5% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
30. 30.In how many years will ₹9500 earn ₹3800 simple interest at 10% per year? (a) 5 years (b) 8 years (c) 3 years (d) 4 years
31. 31.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
32. 32.₹3500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹1680 (b) ₹3920 (c) ₹5600 (d) ₹5180
33. 33.What is the simple interest on ₹2500 at 8% per year for 5 years? (a) ₹200 (b) ₹3500 (c) ₹1200 (d) ₹1000
34. 34.In how many years will ₹3000 earn ₹720 simple interest at 8% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
35. 35.In how many years will ₹5500 earn ₹770 simple interest at 7% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
36. 36.What is the simple interest on ₹5500 at 6% per year for 3 years? (a) ₹990 (b) ₹330 (c) ₹1320 (d) ₹6490
37. 37.The simple interest on ₹1000 for 4 years is ₹360. What is the rate per year? (a) 8% (b) 10% (c) 9% (d) 36%
38. 38.₹4500 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹6480 (b) ₹4995 (c) ₹6975 (d) ₹1980
39. 39.What is the simple interest on ₹6500 at 9% per year for 5 years? (a) ₹585 (b) ₹2925 (c) ₹3510 (d) ₹9425
40. 40.The simple interest on ₹9500 for 5 years is ₹2850. What is the rate per year? (a) 6% (b) 5% (c) 7% (d) 30%

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