Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 645 · 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.The simple interest on ₹4000 for 5 years is ₹2400. What is the rate per year? (a) 60% (b) 13% (c) 11% (d) 12%
2. 2.₹5000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹2000 (b) ₹5400 (c) ₹7400 (d) ₹7000
3. 3.₹1500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹1920 (b) ₹420 (c) ₹2025 (d) ₹1605
4. 4.₹9000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹11160 (b) ₹2160 (c) ₹12240 (d) ₹10080
5. 5.What is the simple interest on ₹4500 at 11% per year for 5 years? (a) ₹6975 (b) ₹2475 (c) ₹2970 (d) ₹495
6. 6.In how many years will ₹10000 earn ₹1200 simple interest at 4% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
7. 7.What is the simple interest on ₹4500 at 4% per year for 3 years? (a) ₹5040 (b) ₹720 (c) ₹180 (d) ₹540
8. 8.What is the simple interest on ₹9500 at 12% per year for 5 years? (a) ₹6840 (b) ₹5700 (c) ₹1140 (d) ₹15200
9. 9.What is the simple interest on ₹3500 at 10% per year for 2 years? (a) ₹1050 (b) ₹350 (c) ₹700 (d) ₹4200
10. 10.The simple interest on ₹4000 for 3 years is ₹840. What is the rate per year? (a) 6% (b) 21% (c) 8% (d) 7%
11. 11.In how many years will ₹6500 earn ₹2925 simple interest at 9% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
12. 12.What is the simple interest on ₹1000 at 8% per year for 4 years? (a) ₹80 (b) ₹400 (c) ₹320 (d) ₹1320
13. 13.What is the simple interest on ₹2000 at 9% per year for 4 years? (a) ₹180 (b) ₹2720 (c) ₹720 (d) ₹900
14. 14.In how many years will ₹7000 earn ₹630 simple interest at 3% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
15. 15.The simple interest on ₹4500 for 5 years is ₹450. What is the rate per year? (a) 3% (b) 10% (c) 1% (d) 2%
16. 16.What is the simple interest on ₹7500 at 10% per year for 2 years? (a) ₹750 (b) ₹2250 (c) ₹9000 (d) ₹1500
17. 17.The simple interest on ₹8500 for 5 years is ₹4250. What is the rate per year? (a) 10% (b) 11% (c) 50% (d) 9%
18. 18.₹2000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹480 (b) ₹2480 (c) ₹2160 (d) ₹2640
19. 19.In how many years will ₹7000 earn ₹3850 simple interest at 11% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
20. 20.What is the simple interest on ₹2000 at 6% per year for 4 years? (a) ₹120 (b) ₹600 (c) ₹2480 (d) ₹480
21. 21.₹6000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹7440 (b) ₹6240 (c) ₹7200 (d) ₹1200
22. 22.In how many years will ₹2000 earn ₹160 simple interest at 2% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
23. 23.In how many years will ₹5500 earn ₹330 simple interest at 3% per year? (a) 2 years (b) 3 years (c) 1 year (d) 4 years
24. 24.The simple interest on ₹5500 for 4 years is ₹440. What is the rate per year? (a) 8% (b) 1% (c) 3% (d) 2%
25. 25.In how many years will ₹8000 earn ₹720 simple interest at 3% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
26. 26.₹5500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹825 (b) ₹6490 (c) ₹6325 (d) ₹5665
27. 27.The simple interest on ₹10000 for 4 years is ₹1600. What is the rate per year? (a) 5% (b) 4% (c) 16% (d) 3%
28. 28.What is the simple interest on ₹6000 at 2% per year for 5 years? (a) ₹120 (b) ₹600 (c) ₹720 (d) ₹6600
29. 29.What is the simple interest on ₹3500 at 11% per year for 2 years? (a) ₹770 (b) ₹385 (c) ₹4270 (d) ₹1155
30. 30.The simple interest on ₹6000 for 2 years is ₹1320. What is the rate per year? (a) 22% (b) 12% (c) 11% (d) 10%
31. 31.The simple interest on ₹6500 for 5 years is ₹1300. What is the rate per year? (a) 3% (b) 4% (c) 20% (d) 5%
32. 32.What is the simple interest on ₹1500 at 10% per year for 4 years? (a) ₹600 (b) ₹150 (c) ₹2100 (d) ₹750
33. 33.The simple interest on ₹3500 for 3 years is ₹315. What is the rate per year? (a) 4% (b) 2% (c) 9% (d) 3%
34. 34.What is the simple interest on ₹7000 at 12% per year for 4 years? (a) ₹4200 (b) ₹3360 (c) ₹10360 (d) ₹840
35. 35.In how many years will ₹7000 earn ₹560 simple interest at 4% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
36. 36.What is the simple interest on ₹2500 at 3% per year for 4 years? (a) ₹375 (b) ₹75 (c) ₹300 (d) ₹2800
37. 37.What is the simple interest on ₹8000 at 2% per year for 5 years? (a) ₹160 (b) ₹960 (c) ₹8800 (d) ₹800
38. 38.What is the simple interest on ₹10000 at 8% per year for 3 years? (a) ₹800 (b) ₹3200 (c) ₹12400 (d) ₹2400
39. 39.The simple interest on ₹5000 for 3 years is ₹1350. What is the rate per year? (a) 8% (b) 9% (c) 27% (d) 10%
40. 40.The simple interest on ₹7500 for 2 years is ₹1050. What is the rate per year? (a) 8% (b) 7% (c) 14% (d) 6%

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