Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 346 · 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 ₹2000 earn ₹440 simple interest at 11% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
2. 2.What is the simple interest on ₹8000 at 4% per year for 4 years? (a) ₹320 (b) ₹1280 (c) ₹9280 (d) ₹1600
3. 3.₹7500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹1125 (b) ₹9000 (c) ₹8625 (d) ₹7875
4. 4.The simple interest on ₹7000 for 3 years is ₹2520. What is the rate per year? (a) 12% (b) 36% (c) 11% (d) 13%
5. 5.₹2500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹350 (b) ₹2850 (c) ₹2675 (d) ₹3025
6. 6.What is the simple interest on ₹2000 at 4% per year for 3 years? (a) ₹2240 (b) ₹240 (c) ₹80 (d) ₹320
7. 7.₹3000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹3480 (b) ₹480 (c) ₹3120 (d) ₹3600
8. 8.What is the simple interest on ₹2500 at 3% per year for 5 years? (a) ₹2875 (b) ₹375 (c) ₹75 (d) ₹450
9. 9.In how many years will ₹2000 earn ₹500 simple interest at 5% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
10. 10.The simple interest on ₹2000 for 3 years is ₹720. What is the rate per year? (a) 12% (b) 13% (c) 36% (d) 11%
11. 11.₹6500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹6825 (b) ₹7150 (c) ₹650 (d) ₹7475
12. 12.What is the simple interest on ₹2000 at 9% per year for 4 years? (a) ₹180 (b) ₹900 (c) ₹720 (d) ₹2720
13. 13.₹1000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹1040 (b) ₹120 (c) ₹1160 (d) ₹1120
14. 14.In how many years will ₹9500 earn ₹4275 simple interest at 9% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
15. 15.What is the simple interest on ₹9500 at 12% per year for 4 years? (a) ₹14060 (b) ₹1140 (c) ₹5700 (d) ₹4560
16. 16.In how many years will ₹4500 earn ₹1440 simple interest at 8% per year? (a) 8 years (b) 5 years (c) 4 years (d) 3 years
17. 17.In how many years will ₹2500 earn ₹600 simple interest at 6% per year? (a) 4 years (b) 5 years (c) 3 years (d) 8 years
18. 18.In how many years will ₹1000 earn ₹330 simple interest at 11% per year? (a) 6 years (b) 3 years (c) 4 years (d) 2 years
19. 19.In how many years will ₹9000 earn ₹900 simple interest at 5% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
20. 20.₹8000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹8880 (b) ₹11520 (c) ₹2640 (d) ₹10640
21. 21.₹8000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹2880 (b) ₹8720 (c) ₹11600 (d) ₹10880
22. 22.What is the simple interest on ₹5000 at 12% per year for 3 years? (a) ₹6800 (b) ₹2400 (c) ₹1800 (d) ₹600
23. 23.What is the simple interest on ₹7500 at 12% per year for 2 years? (a) ₹9300 (b) ₹900 (c) ₹2700 (d) ₹1800
24. 24.In how many years will ₹9000 earn ₹2160 simple interest at 12% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
25. 25.₹8000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹9440 (b) ₹8720 (c) ₹10160 (d) ₹1440
26. 26.In how many years will ₹1000 earn ₹360 simple interest at 12% per year? (a) 3 years (b) 6 years (c) 4 years (d) 2 years
27. 27.₹8000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹9200 (b) ₹1200 (c) ₹8400 (d) ₹9600
28. 28.The simple interest on ₹2500 for 3 years is ₹750. What is the rate per year? (a) 10% (b) 30% (c) 11% (d) 9%
29. 29.The simple interest on ₹4500 for 2 years is ₹810. What is the rate per year? (a) 10% (b) 8% (c) 9% (d) 18%
30. 30.₹3000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹3240 (b) ₹180 (c) ₹3180 (d) ₹3060
31. 31.What is the simple interest on ₹3500 at 3% per year for 3 years? (a) ₹105 (b) ₹3815 (c) ₹315 (d) ₹420
32. 32.₹1000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹1030 (b) ₹1150 (c) ₹1120 (d) ₹120
33. 33.The simple interest on ₹3500 for 5 years is ₹2100. What is the rate per year? (a) 60% (b) 11% (c) 13% (d) 12%
34. 34.₹6000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹7440 (b) ₹6240 (c) ₹7200 (d) ₹1200
35. 35.What is the simple interest on ₹8000 at 7% per year for 4 years? (a) ₹10240 (b) ₹560 (c) ₹2240 (d) ₹2800
36. 36.₹6000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹6720 (b) ₹8160 (c) ₹1440 (d) ₹7440
37. 37.₹7000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹1120 (b) ₹7280 (c) ₹8120 (d) ₹8400
38. 38.What is the simple interest on ₹3000 at 9% per year for 3 years? (a) ₹1080 (b) ₹270 (c) ₹3810 (d) ₹810
39. 39.What is the simple interest on ₹3000 at 12% per year for 3 years? (a) ₹1440 (b) ₹1080 (c) ₹360 (d) ₹4080
40. 40.In how many years will ₹2000 earn ₹320 simple interest at 4% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years

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