Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 875 · 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 ₹7500 at 8% per year for 5 years? (a) ₹600 (b) ₹3000 (c) ₹10500 (d) ₹3600
2. 2.In how many years will ₹7000 earn ₹1400 simple interest at 10% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
3. 3.The simple interest on ₹1000 for 4 years is ₹320. What is the rate per year? (a) 8% (b) 9% (c) 32% (d) 7%
4. 4.₹4500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹540 (b) ₹5310 (c) ₹4770 (d) ₹5040
5. 5.₹7500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹12000 (b) ₹4500 (c) ₹8400 (d) ₹12900
6. 6.The simple interest on ₹10000 for 4 years is ₹1200. What is the rate per year? (a) 3% (b) 4% (c) 2% (d) 12%
7. 7.What is the simple interest on ₹3500 at 2% per year for 2 years? (a) ₹210 (b) ₹3640 (c) ₹140 (d) ₹70
8. 8.₹5000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹5550 (b) ₹1100 (c) ₹6650 (d) ₹6100
9. 9.What is the simple interest on ₹1000 at 12% per year for 5 years? (a) ₹120 (b) ₹720 (c) ₹1600 (d) ₹600
10. 10.The simple interest on ₹1000 for 3 years is ₹60. What is the rate per year? (a) 1% (b) 6% (c) 3% (d) 2%
11. 11.₹9000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹10800 (b) ₹10350 (c) ₹9450 (d) ₹1350
12. 12.The simple interest on ₹1500 for 5 years is ₹225. What is the rate per year? (a) 4% (b) 2% (c) 15% (d) 3%
13. 13.The simple interest on ₹1500 for 2 years is ₹60. What is the rate per year? (a) 4% (b) 3% (c) 1% (d) 2%
14. 14.₹3000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹3060 (b) ₹3180 (c) ₹180 (d) ₹3240
15. 15.In how many years will ₹6500 earn ₹1560 simple interest at 12% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
16. 16.What is the simple interest on ₹9000 at 7% per year for 3 years? (a) ₹2520 (b) ₹630 (c) ₹10890 (d) ₹1890
17. 17.What is the simple interest on ₹6000 at 3% per year for 4 years? (a) ₹6720 (b) ₹900 (c) ₹180 (d) ₹720
18. 18.₹8000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹8320 (b) ₹8160 (c) ₹8480 (d) ₹320
19. 19.In how many years will ₹7000 earn ₹420 simple interest at 2% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
20. 20.In how many years will ₹8500 earn ₹1275 simple interest at 3% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
21. 21.What is the simple interest on ₹7000 at 11% per year for 3 years? (a) ₹770 (b) ₹9310 (c) ₹2310 (d) ₹3080
22. 22.The simple interest on ₹3000 for 4 years is ₹360. What is the rate per year? (a) 4% (b) 3% (c) 12% (d) 2%
23. 23.The simple interest on ₹10000 for 2 years is ₹800. What is the rate per year? (a) 8% (b) 5% (c) 4% (d) 3%
24. 24.What is the simple interest on ₹6500 at 5% per year for 3 years? (a) ₹975 (b) ₹7475 (c) ₹325 (d) ₹1300
25. 25.What is the simple interest on ₹4500 at 12% per year for 5 years? (a) ₹2700 (b) ₹7200 (c) ₹540 (d) ₹3240
26. 26.In how many years will ₹3500 earn ₹980 simple interest at 7% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
27. 27.The simple interest on ₹7000 for 2 years is ₹1120. What is the rate per year? (a) 8% (b) 16% (c) 7% (d) 9%
28. 28.The simple interest on ₹6500 for 2 years is ₹1560. What is the rate per year? (a) 13% (b) 11% (c) 24% (d) 12%
29. 29.₹6500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹780 (b) ₹7540 (c) ₹6760 (d) ₹7280
30. 30.₹1000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹1080 (b) ₹1100 (c) ₹1020 (d) ₹80
31. 31.What is the simple interest on ₹1000 at 7% per year for 3 years? (a) ₹70 (b) ₹210 (c) ₹1210 (d) ₹280
32. 32.The simple interest on ₹4500 for 3 years is ₹405. What is the rate per year? (a) 3% (b) 4% (c) 9% (d) 2%
33. 33.₹7500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹9900 (b) ₹10500 (c) ₹2400 (d) ₹8100
34. 34.₹4500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹4725 (b) ₹5850 (c) ₹5625 (d) ₹1125
35. 35.₹2000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹2040 (b) ₹2120 (c) ₹2080 (d) ₹80
36. 36.₹4500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹4680 (b) ₹4770 (c) ₹180 (d) ₹4590
37. 37.What is the simple interest on ₹6500 at 8% per year for 4 years? (a) ₹2080 (b) ₹520 (c) ₹2600 (d) ₹8580
38. 38.What is the simple interest on ₹3000 at 3% per year for 2 years? (a) ₹3180 (b) ₹270 (c) ₹90 (d) ₹180
39. 39.₹3000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹3630 (b) ₹420 (c) ₹3420 (d) ₹3210
40. 40.What is the simple interest on ₹3500 at 3% per year for 3 years? (a) ₹420 (b) ₹105 (c) ₹3815 (d) ₹315

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