Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 985 · 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.What is the simple interest on ₹7000 at 3% per year for 3 years? (a) ₹210 (b) ₹840 (c) ₹7630 (d) ₹630
2. 2.The simple interest on ₹9000 for 5 years is ₹3150. What is the rate per year? (a) 7% (b) 35% (c) 6% (d) 8%
3. 3.The simple interest on ₹5500 for 3 years is ₹330. What is the rate per year? (a) 3% (b) 6% (c) 1% (d) 2%
4. 4.The simple interest on ₹1500 for 3 years is ₹270. What is the rate per year? (a) 5% (b) 6% (c) 7% (d) 18%
5. 5.In how many years will ₹8500 earn ₹3740 simple interest at 11% per year? (a) 4 years (b) 3 years (c) 5 years (d) 8 years
6. 6.The simple interest on ₹6500 for 4 years is ₹2860. What is the rate per year? (a) 10% (b) 11% (c) 44% (d) 12%
7. 7.In how many years will ₹8000 earn ₹2880 simple interest at 9% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
8. 8.What is the simple interest on ₹1500 at 9% per year for 4 years? (a) ₹540 (b) ₹135 (c) ₹2040 (d) ₹675
9. 9.What is the simple interest on ₹5000 at 2% per year for 2 years? (a) ₹100 (b) ₹300 (c) ₹5200 (d) ₹200
10. 10.The simple interest on ₹2000 for 2 years is ₹240. What is the rate per year? (a) 6% (b) 7% (c) 5% (d) 12%
11. 11.The simple interest on ₹1000 for 3 years is ₹180. What is the rate per year? (a) 6% (b) 18% (c) 7% (d) 5%
12. 12.The simple interest on ₹10000 for 2 years is ₹1200. What is the rate per year? (a) 12% (b) 5% (c) 6% (d) 7%
13. 13.The simple interest on ₹6000 for 2 years is ₹480. What is the rate per year? (a) 4% (b) 8% (c) 3% (d) 5%
14. 14.What is the simple interest on ₹9500 at 7% per year for 4 years? (a) ₹12160 (b) ₹3325 (c) ₹2660 (d) ₹665
15. 15.The simple interest on ₹7000 for 4 years is ₹2240. What is the rate per year? (a) 32% (b) 8% (c) 9% (d) 7%
16. 16.The simple interest on ₹3500 for 2 years is ₹210. What is the rate per year? (a) 3% (b) 4% (c) 2% (d) 6%
17. 17.What is the simple interest on ₹2000 at 9% per year for 4 years? (a) ₹180 (b) ₹2720 (c) ₹900 (d) ₹720
18. 18.₹10000 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹13000 (b) ₹10600 (c) ₹13600 (d) ₹3000
19. 19.In how many years will ₹4500 earn ₹450 simple interest at 5% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
20. 20.The simple interest on ₹7500 for 2 years is ₹300. What is the rate per year? (a) 4% (b) 3% (c) 2% (d) 1%
21. 21.The simple interest on ₹1500 for 3 years is ₹225. What is the rate per year? (a) 4% (b) 6% (c) 15% (d) 5%
22. 22.In how many years will ₹1500 earn ₹360 simple interest at 6% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
23. 23.₹2000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹2240 (b) ₹2080 (c) ₹2320 (d) ₹240
24. 24.What is the simple interest on ₹1000 at 4% per year for 2 years? (a) ₹1080 (b) ₹120 (c) ₹80 (d) ₹40
25. 25.In how many years will ₹1500 earn ₹225 simple interest at 5% per year? (a) 4 years (b) 3 years (c) 6 years (d) 2 years
26. 26.What is the simple interest on ₹8500 at 10% per year for 3 years? (a) ₹3400 (b) ₹2550 (c) ₹11050 (d) ₹850
27. 27.What is the simple interest on ₹9000 at 4% per year for 2 years? (a) ₹720 (b) ₹1080 (c) ₹9720 (d) ₹360
28. 28.The simple interest on ₹2000 for 3 years is ₹240. What is the rate per year? (a) 3% (b) 5% (c) 4% (d) 12%
29. 29.The simple interest on ₹5000 for 3 years is ₹600. What is the rate per year? (a) 4% (b) 12% (c) 5% (d) 3%
30. 30.The simple interest on ₹5000 for 5 years is ₹1500. What is the rate per year? (a) 5% (b) 30% (c) 7% (d) 6%
31. 31.₹9500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹9880 (b) ₹1900 (c) ₹11780 (d) ₹11400
32. 32.₹9000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹900 (b) ₹9450 (c) ₹9900 (d) ₹10350
33. 33.What is the simple interest on ₹4500 at 10% per year for 4 years? (a) ₹6300 (b) ₹1800 (c) ₹2250 (d) ₹450
34. 34.What is the simple interest on ₹7000 at 3% per year for 4 years? (a) ₹7840 (b) ₹840 (c) ₹210 (d) ₹1050
35. 35.What is the simple interest on ₹4500 at 6% per year for 2 years? (a) ₹270 (b) ₹540 (c) ₹5040 (d) ₹810
36. 36.What is the simple interest on ₹9000 at 6% per year for 3 years? (a) ₹540 (b) ₹10620 (c) ₹1620 (d) ₹2160
37. 37.The simple interest on ₹4000 for 4 years is ₹1280. What is the rate per year? (a) 32% (b) 9% (c) 8% (d) 7%
38. 38.In how many years will ₹1500 earn ₹300 simple interest at 4% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
39. 39.What is the simple interest on ₹9500 at 2% per year for 2 years? (a) ₹190 (b) ₹380 (c) ₹9880 (d) ₹570
40. 40.In how many years will ₹4000 earn ₹1760 simple interest at 11% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years

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