Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 173 · 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 ₹7000 earn ₹840 simple interest at 4% per year? (a) 2 years (b) 3 years (c) 4 years (d) 6 years
2. 2.In how many years will ₹10000 earn ₹3600 simple interest at 9% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
3. 3.The simple interest on ₹7500 for 5 years is ₹2625. What is the rate per year? (a) 8% (b) 7% (c) 35% (d) 6%
4. 4.In how many years will ₹1000 earn ₹100 simple interest at 5% per year? (a) 4 years (b) 2 years (c) 3 years (d) 1 year
5. 5.In how many years will ₹9500 earn ₹760 simple interest at 2% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
6. 6.In how many years will ₹4500 earn ₹540 simple interest at 3% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
7. 7.In how many years will ₹9500 earn ₹570 simple interest at 2% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
8. 8.What is the simple interest on ₹10000 at 6% per year for 2 years? (a) ₹600 (b) ₹11200 (c) ₹1200 (d) ₹1800
9. 9.What is the simple interest on ₹3000 at 8% per year for 5 years? (a) ₹1440 (b) ₹240 (c) ₹1200 (d) ₹4200
10. 10.What is the simple interest on ₹7000 at 4% per year for 3 years? (a) ₹840 (b) ₹1120 (c) ₹280 (d) ₹7840
11. 11.₹5000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹800 (b) ₹6000 (c) ₹5800 (d) ₹5200
12. 12.In how many years will ₹7000 earn ₹2240 simple interest at 8% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
13. 13.₹8000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹8320 (b) ₹9280 (c) ₹1280 (d) ₹9600
14. 14.What is the simple interest on ₹1000 at 10% per year for 4 years? (a) ₹400 (b) ₹1400 (c) ₹100 (d) ₹500
15. 15.In how many years will ₹6500 earn ₹2340 simple interest at 12% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
16. 16.What is the simple interest on ₹1000 at 12% per year for 5 years? (a) ₹720 (b) ₹1600 (c) ₹120 (d) ₹600
17. 17.₹5000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹5100 (b) ₹400 (c) ₹5400 (d) ₹5500
18. 18.What is the simple interest on ₹4500 at 10% per year for 5 years? (a) ₹2250 (b) ₹6750 (c) ₹2700 (d) ₹450
19. 19.In how many years will ₹2000 earn ₹480 simple interest at 6% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
20. 20.₹1000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹1300 (b) ₹250 (c) ₹1250 (d) ₹1050
21. 21.In how many years will ₹3000 earn ₹1650 simple interest at 11% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
22. 22.In how many years will ₹6500 earn ₹3120 simple interest at 12% per year? (a) 4 years (b) 3 years (c) 5 years (d) 8 years
23. 23.What is the simple interest on ₹6000 at 4% per year for 4 years? (a) ₹240 (b) ₹960 (c) ₹1200 (d) ₹6960
24. 24.₹6000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹10320 (b) ₹6720 (c) ₹9600 (d) ₹3600
25. 25.In how many years will ₹6500 earn ₹2080 simple interest at 8% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
26. 26.₹1000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹1090 (b) ₹270 (c) ₹1360 (d) ₹1270
27. 27.₹4500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹5400 (b) ₹900 (c) ₹4680 (d) ₹5580
28. 28.What is the simple interest on ₹4500 at 7% per year for 4 years? (a) ₹315 (b) ₹5760 (c) ₹1260 (d) ₹1575
29. 29.In how many years will ₹9000 earn ₹3960 simple interest at 11% per year? (a) 3 years (b) 4 years (c) 5 years (d) 8 years
30. 30.₹3000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹600 (b) ₹3600 (c) ₹3750 (d) ₹3150
31. 31.The simple interest on ₹3000 for 5 years is ₹1050. What is the rate per year? (a) 35% (b) 7% (c) 6% (d) 8%
32. 32.The simple interest on ₹10000 for 3 years is ₹3000. What is the rate per year? (a) 30% (b) 10% (c) 11% (d) 9%
33. 33.The simple interest on ₹7500 for 2 years is ₹1650. What is the rate per year? (a) 10% (b) 12% (c) 11% (d) 22%
34. 34.₹3500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹735 (b) ₹4480 (c) ₹3745 (d) ₹4235
35. 35.₹2000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹2280 (b) ₹280 (c) ₹2140 (d) ₹2420
36. 36.The simple interest on ₹3000 for 4 years is ₹960. What is the rate per year? (a) 9% (b) 32% (c) 7% (d) 8%
37. 37.The simple interest on ₹4000 for 5 years is ₹1200. What is the rate per year? (a) 5% (b) 30% (c) 7% (d) 6%
38. 38.The simple interest on ₹2000 for 2 years is ₹280. What is the rate per year? (a) 14% (b) 6% (c) 8% (d) 7%
39. 39.In how many years will ₹9500 earn ₹3325 simple interest at 7% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
40. 40.₹2000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹2600 (b) ₹2400 (c) ₹2200 (d) ₹400

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