Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 293 · 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.₹1500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹1950 (b) ₹1650 (c) ₹300 (d) ₹1800
2. 2.The simple interest on ₹3000 for 3 years is ₹630. What is the rate per year? (a) 8% (b) 21% (c) 6% (d) 7%
3. 3.The simple interest on ₹10000 for 2 years is ₹600. What is the rate per year? (a) 3% (b) 4% (c) 2% (d) 6%
4. 4.₹10000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹12200 (b) ₹2200 (c) ₹11100 (d) ₹13300
5. 5.What is the simple interest on ₹7000 at 2% per year for 2 years? (a) ₹7280 (b) ₹140 (c) ₹420 (d) ₹280
6. 6.The simple interest on ₹10000 for 2 years is ₹1000. What is the rate per year? (a) 10% (b) 4% (c) 5% (d) 6%
7. 7.₹2500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹2900 (b) ₹2700 (c) ₹3100 (d) ₹400
8. 8.In how many years will ₹6000 earn ₹1200 simple interest at 10% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
9. 9.In how many years will ₹7500 earn ₹3000 simple interest at 10% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
10. 10.₹8500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹9095 (b) ₹11475 (c) ₹12070 (d) ₹2975
11. 11.In how many years will ₹2500 earn ₹300 simple interest at 4% per year? (a) 4 years (b) 3 years (c) 6 years (d) 2 years
12. 12.In how many years will ₹3000 earn ₹300 simple interest at 2% per year? (a) 4 years (b) 5 years (c) 6 years (d) 10 years
13. 13.What is the simple interest on ₹9000 at 3% per year for 3 years? (a) ₹9810 (b) ₹1080 (c) ₹810 (d) ₹270
14. 14.The simple interest on ₹7000 for 5 years is ₹3850. What is the rate per year? (a) 11% (b) 10% (c) 55% (d) 12%
15. 15.In how many years will ₹2500 earn ₹350 simple interest at 7% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
16. 16.In how many years will ₹4500 earn ₹450 simple interest at 5% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
17. 17.The simple interest on ₹7500 for 5 years is ₹1500. What is the rate per year? (a) 4% (b) 5% (c) 20% (d) 3%
18. 18.₹2000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹2080 (b) ₹2160 (c) ₹160 (d) ₹2240
19. 19.What is the simple interest on ₹8500 at 2% per year for 4 years? (a) ₹170 (b) ₹680 (c) ₹9180 (d) ₹850
20. 20.₹3500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹4235 (b) ₹3990 (c) ₹3745 (d) ₹490
21. 21.What is the simple interest on ₹6000 at 6% per year for 2 years? (a) ₹360 (b) ₹6720 (c) ₹720 (d) ₹1080
22. 22.What is the simple interest on ₹9500 at 6% per year for 5 years? (a) ₹2850 (b) ₹570 (c) ₹3420 (d) ₹12350
23. 23.The simple interest on ₹5000 for 3 years is ₹1800. What is the rate per year? (a) 13% (b) 36% (c) 12% (d) 11%
24. 24.What is the simple interest on ₹6500 at 10% per year for 2 years? (a) ₹1950 (b) ₹7800 (c) ₹1300 (d) ₹650
25. 25.The simple interest on ₹2000 for 2 years is ₹80. What is the rate per year? (a) 4% (b) 1% (c) 2% (d) 3%
26. 26.What is the simple interest on ₹9000 at 10% per year for 2 years? (a) ₹900 (b) ₹2700 (c) ₹10800 (d) ₹1800
27. 27.What is the simple interest on ₹3000 at 6% per year for 3 years? (a) ₹720 (b) ₹180 (c) ₹3540 (d) ₹540
28. 28.The simple interest on ₹1500 for 5 years is ₹300. What is the rate per year? (a) 20% (b) 3% (c) 5% (d) 4%
29. 29.₹5500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹6160 (b) ₹495 (c) ₹5665 (d) ₹5995
30. 30.₹1500 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹2250 (b) ₹1650 (c) ₹750 (d) ₹2400
31. 31.In how many years will ₹10000 earn ₹3200 simple interest at 8% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
32. 32.₹3000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹300 (b) ₹3360 (c) ₹3060 (d) ₹3300
33. 33.The simple interest on ₹4000 for 5 years is ₹600. What is the rate per year? (a) 4% (b) 2% (c) 15% (d) 3%
34. 34.In how many years will ₹8500 earn ₹2040 simple interest at 8% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
35. 35.In how many years will ₹6500 earn ₹2080 simple interest at 8% per year? (a) 4 years (b) 8 years (c) 5 years (d) 3 years
36. 36.In how many years will ₹9000 earn ₹1350 simple interest at 3% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
37. 37.What is the simple interest on ₹5000 at 3% per year for 2 years? (a) ₹5300 (b) ₹450 (c) ₹300 (d) ₹150
38. 38.In how many years will ₹1500 earn ₹90 simple interest at 2% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
39. 39.What is the simple interest on ₹5500 at 3% per year for 4 years? (a) ₹825 (b) ₹660 (c) ₹165 (d) ₹6160
40. 40.The simple interest on ₹7500 for 5 years is ₹3375. What is the rate per year? (a) 8% (b) 45% (c) 9% (d) 10%

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