Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 33 · 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 ₹3000 at 7% per year for 2 years? (a) ₹630 (b) ₹210 (c) ₹420 (d) ₹3420
2. 2.What is the simple interest on ₹4000 at 12% per year for 5 years? (a) ₹6400 (b) ₹2880 (c) ₹2400 (d) ₹480
3. 3.What is the simple interest on ₹8500 at 4% per year for 3 years? (a) ₹9520 (b) ₹340 (c) ₹1020 (d) ₹1360
4. 4.₹9000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹11520 (b) ₹2520 (c) ₹9630 (d) ₹12150
5. 5.₹7500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹8100 (b) ₹7950 (c) ₹450 (d) ₹7650
6. 6.What is the simple interest on ₹2000 at 4% per year for 5 years? (a) ₹80 (b) ₹2400 (c) ₹480 (d) ₹400
7. 7.₹7500 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹10875 (b) ₹3375 (c) ₹11550 (d) ₹8175
8. 8.The simple interest on ₹8500 for 2 years is ₹1020. What is the rate per year? (a) 5% (b) 6% (c) 12% (d) 7%
9. 9.₹8500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹765 (b) ₹8755 (c) ₹9265 (d) ₹9520
10. 10.What is the simple interest on ₹5000 at 12% per year for 5 years? (a) ₹3600 (b) ₹8000 (c) ₹600 (d) ₹3000
11. 11.The simple interest on ₹9000 for 3 years is ₹1620. What is the rate per year? (a) 5% (b) 7% (c) 18% (d) 6%
12. 12.₹1000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹320 (b) ₹1320 (c) ₹1400 (d) ₹1080
13. 13.What is the simple interest on ₹9000 at 12% per year for 3 years? (a) ₹3240 (b) ₹1080 (c) ₹12240 (d) ₹4320
14. 14.₹9500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹2850 (b) ₹12920 (c) ₹10070 (d) ₹12350
15. 15.The simple interest on ₹4000 for 4 years is ₹1120. What is the rate per year? (a) 8% (b) 28% (c) 6% (d) 7%
16. 16.In how many years will ₹2000 earn ₹320 simple interest at 4% per year? (a) 4 years (b) 5 years (c) 8 years (d) 3 years
17. 17.In how many years will ₹9500 earn ₹570 simple interest at 3% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
18. 18.₹8000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹8240 (b) ₹8960 (c) ₹720 (d) ₹8720
19. 19.What is the simple interest on ₹1000 at 3% per year for 2 years? (a) ₹90 (b) ₹30 (c) ₹60 (d) ₹1060
20. 20.In how many years will ₹1500 earn ₹90 simple interest at 2% per year? (a) 6 years (b) 3 years (c) 4 years (d) 2 years
21. 21.In how many years will ₹4000 earn ₹1200 simple interest at 6% per year? (a) 5 years (b) 4 years (c) 10 years (d) 6 years
22. 22.What is the simple interest on ₹1000 at 8% per year for 4 years? (a) ₹80 (b) ₹320 (c) ₹1320 (d) ₹400
23. 23.In how many years will ₹3000 earn ₹480 simple interest at 4% per year? (a) 4 years (b) 5 years (c) 8 years (d) 3 years
24. 24.The simple interest on ₹2000 for 4 years is ₹400. What is the rate per year? (a) 6% (b) 4% (c) 5% (d) 20%
25. 25.In how many years will ₹10000 earn ₹800 simple interest at 2% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
26. 26.In how many years will ₹3500 earn ₹420 simple interest at 6% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
27. 27.The simple interest on ₹2000 for 5 years is ₹1100. What is the rate per year? (a) 11% (b) 12% (c) 10% (d) 55%
28. 28.₹2500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹2775 (b) ₹3325 (c) ₹3050 (d) ₹550
29. 29.The simple interest on ₹2500 for 4 years is ₹700. What is the rate per year? (a) 8% (b) 7% (c) 6% (d) 28%
30. 30.What is the simple interest on ₹2500 at 12% per year for 3 years? (a) ₹3400 (b) ₹1200 (c) ₹900 (d) ₹300
31. 31.The simple interest on ₹8500 for 2 years is ₹2040. What is the rate per year? (a) 24% (b) 11% (c) 13% (d) 12%
32. 32.In how many years will ₹1000 earn ₹600 simple interest at 12% per year? (a) 10 years (b) 5 years (c) 4 years (d) 6 years
33. 33.What is the simple interest on ₹2500 at 10% per year for 4 years? (a) ₹3500 (b) ₹1250 (c) ₹1000 (d) ₹250
34. 34.₹2000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹2240 (b) ₹240 (c) ₹2060 (d) ₹2300
35. 35.What is the simple interest on ₹7500 at 4% per year for 3 years? (a) ₹1200 (b) ₹900 (c) ₹8400 (d) ₹300
36. 36.The simple interest on ₹8500 for 2 years is ₹1530. What is the rate per year? (a) 10% (b) 9% (c) 18% (d) 8%
37. 37.What is the simple interest on ₹4500 at 8% per year for 4 years? (a) ₹1440 (b) ₹360 (c) ₹1800 (d) ₹5940
38. 38.What is the simple interest on ₹6500 at 3% per year for 3 years? (a) ₹585 (b) ₹195 (c) ₹7085 (d) ₹780
39. 39.₹2000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹2200 (b) ₹2600 (c) ₹400 (d) ₹2400
40. 40.The simple interest on ₹8500 for 5 years is ₹1275. What is the rate per year? (a) 15% (b) 3% (c) 2% (d) 4%

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