Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 383 · 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 ₹3500 at 8% per year for 4 years? (a) ₹4620 (b) ₹1120 (c) ₹280 (d) ₹1400
2. 2.The simple interest on ₹9500 for 5 years is ₹2850. What is the rate per year? (a) 7% (b) 6% (c) 5% (d) 30%
3. 3.₹6000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹8880 (b) ₹8160 (c) ₹6720 (d) ₹2160
4. 4.In how many years will ₹4500 earn ₹1260 simple interest at 7% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
5. 5.What is the simple interest on ₹9500 at 4% per year for 3 years? (a) ₹380 (b) ₹10640 (c) ₹1520 (d) ₹1140
6. 6.₹4500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹4860 (b) ₹5940 (c) ₹1080 (d) ₹5580
7. 7.₹1500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹180 (b) ₹1560 (c) ₹1680 (d) ₹1740
8. 8.₹1500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹405 (b) ₹2040 (c) ₹1635 (d) ₹1905
9. 9.₹7000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹1400 (b) ₹9100 (c) ₹8400 (d) ₹7700
10. 10.What is the simple interest on ₹3000 at 4% per year for 5 years? (a) ₹600 (b) ₹720 (c) ₹3600 (d) ₹120
11. 11.What is the simple interest on ₹5000 at 6% per year for 2 years? (a) ₹5600 (b) ₹600 (c) ₹300 (d) ₹900
12. 12.The simple interest on ₹6500 for 3 years is ₹1170. What is the rate per year? (a) 7% (b) 5% (c) 6% (d) 18%
13. 13.What is the simple interest on ₹6500 at 7% per year for 2 years? (a) ₹7410 (b) ₹455 (c) ₹910 (d) ₹1365
14. 14.The simple interest on ₹5500 for 5 years is ₹1925. What is the rate per year? (a) 7% (b) 35% (c) 8% (d) 6%
15. 15.₹8500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹680 (b) ₹9180 (c) ₹8670 (d) ₹9350
16. 16.What is the simple interest on ₹6000 at 2% per year for 2 years? (a) ₹120 (b) ₹240 (c) ₹360 (d) ₹6240
17. 17.What is the simple interest on ₹10000 at 9% per year for 5 years? (a) ₹4500 (b) ₹5400 (c) ₹14500 (d) ₹900
18. 18.In how many years will ₹1000 earn ₹180 simple interest at 6% per year? (a) 2 years (b) 3 years (c) 4 years (d) 6 years
19. 19.What is the simple interest on ₹2500 at 3% per year for 2 years? (a) ₹150 (b) ₹75 (c) ₹2650 (d) ₹225
20. 20.What is the simple interest on ₹2500 at 9% per year for 3 years? (a) ₹900 (b) ₹675 (c) ₹3175 (d) ₹225
21. 21.₹2000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹2200 (b) ₹2800 (c) ₹600 (d) ₹2600
22. 22.What is the simple interest on ₹2000 at 5% per year for 4 years? (a) ₹2400 (b) ₹500 (c) ₹100 (d) ₹400
23. 23.The simple interest on ₹4500 for 3 years is ₹1350. What is the rate per year? (a) 9% (b) 11% (c) 30% (d) 10%
24. 24.What is the simple interest on ₹5500 at 10% per year for 2 years? (a) ₹1100 (b) ₹1650 (c) ₹550 (d) ₹6600
25. 25.The simple interest on ₹3500 for 4 years is ₹980. What is the rate per year? (a) 28% (b) 7% (c) 6% (d) 8%
26. 26.What is the simple interest on ₹4500 at 4% per year for 4 years? (a) ₹720 (b) ₹180 (c) ₹900 (d) ₹5220
27. 27.What is the simple interest on ₹4000 at 7% per year for 2 years? (a) ₹280 (b) ₹560 (c) ₹840 (d) ₹4560
28. 28.The simple interest on ₹8500 for 5 years is ₹2975. What is the rate per year? (a) 35% (b) 8% (c) 6% (d) 7%
29. 29.₹4500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹5310 (b) ₹4770 (c) ₹810 (d) ₹5580
30. 30.In how many years will ₹2000 earn ₹440 simple interest at 11% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
31. 31.In how many years will ₹4500 earn ₹450 simple interest at 2% per year? (a) 5 years (b) 4 years (c) 10 years (d) 6 years
32. 32.₹1500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹90 (b) ₹1620 (c) ₹1590 (d) ₹1530
33. 33.The simple interest on ₹7000 for 2 years is ₹1680. What is the rate per year? (a) 24% (b) 11% (c) 12% (d) 13%
34. 34.What is the simple interest on ₹8000 at 6% per year for 3 years? (a) ₹1440 (b) ₹9440 (c) ₹1920 (d) ₹480
35. 35.The simple interest on ₹1500 for 4 years is ₹300. What is the rate per year? (a) 20% (b) 5% (c) 6% (d) 4%
36. 36.₹7500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹8100 (b) ₹3000 (c) ₹11100 (d) ₹10500
37. 37.₹9500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹1425 (b) ₹11400 (c) ₹9975 (d) ₹10925
38. 38.In how many years will ₹2500 earn ₹700 simple interest at 7% per year? (a) 4 years (b) 5 years (c) 8 years (d) 3 years
39. 39.What is the simple interest on ₹1000 at 9% per year for 5 years? (a) ₹90 (b) ₹540 (c) ₹1450 (d) ₹450
40. 40.The simple interest on ₹6500 for 2 years is ₹1430. What is the rate per year? (a) 22% (b) 11% (c) 10% (d) 12%

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