Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 303 · 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 ₹1500 for 2 years is ₹90. What is the rate per year? (a) 6% (b) 2% (c) 4% (d) 3%
2. 2.What is the simple interest on ₹7000 at 3% per year for 4 years? (a) ₹1050 (b) ₹840 (c) ₹7840 (d) ₹210
3. 3.In how many years will ₹8000 earn ₹1280 simple interest at 8% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
4. 4.₹5000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹8600 (b) ₹5600 (c) ₹3000 (d) ₹8000
5. 5.₹6500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹8125 (b) ₹1300 (c) ₹7800 (d) ₹6825
6. 6.In how many years will ₹7500 earn ₹1050 simple interest at 7% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
7. 7.In how many years will ₹5500 earn ₹1980 simple interest at 12% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
8. 8.The simple interest on ₹7000 for 4 years is ₹2800. What is the rate per year? (a) 9% (b) 11% (c) 40% (d) 10%
9. 9.In how many years will ₹1500 earn ₹210 simple interest at 7% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
10. 10.What is the simple interest on ₹4000 at 9% per year for 2 years? (a) ₹4720 (b) ₹360 (c) ₹1080 (d) ₹720
11. 11.₹3000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹3450 (b) ₹3150 (c) ₹3300 (d) ₹300
12. 12.What is the simple interest on ₹6500 at 4% per year for 5 years? (a) ₹260 (b) ₹7800 (c) ₹1560 (d) ₹1300
13. 13.₹3000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹3240 (b) ₹3720 (c) ₹480 (d) ₹3480
14. 14.What is the simple interest on ₹6500 at 3% per year for 2 years? (a) ₹390 (b) ₹195 (c) ₹585 (d) ₹6890
15. 15.₹7000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹8400 (b) ₹1120 (c) ₹8120 (d) ₹7280
16. 16.₹4000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹4960 (b) ₹4160 (c) ₹4800 (d) ₹800
17. 17.The simple interest on ₹7500 for 4 years is ₹2700. What is the rate per year? (a) 8% (b) 10% (c) 9% (d) 36%
18. 18.What is the simple interest on ₹2000 at 12% per year for 2 years? (a) ₹480 (b) ₹2480 (c) ₹720 (d) ₹240
19. 19.₹3500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹420 (b) ₹3640 (c) ₹3920 (d) ₹4060
20. 20.₹5000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹5350 (b) ₹6400 (c) ₹1400 (d) ₹6750
21. 21.₹1500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹1620 (b) ₹90 (c) ₹1590 (d) ₹1530
22. 22.In how many years will ₹5500 earn ₹1650 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
23. 23.What is the simple interest on ₹1500 at 6% per year for 3 years? (a) ₹360 (b) ₹270 (c) ₹1770 (d) ₹90
24. 24.₹1000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹1100 (b) ₹1020 (c) ₹80 (d) ₹1080
25. 25.In how many years will ₹3500 earn ₹315 simple interest at 3% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
26. 26.In how many years will ₹7500 earn ₹600 simple interest at 2% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
27. 27.What is the simple interest on ₹3000 at 2% per year for 3 years? (a) ₹180 (b) ₹3180 (c) ₹240 (d) ₹60
28. 28.₹6000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹7440 (b) ₹1080 (c) ₹6360 (d) ₹7080
29. 29.In how many years will ₹1000 earn ₹90 simple interest at 3% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
30. 30.What is the simple interest on ₹8500 at 5% per year for 3 years? (a) ₹425 (b) ₹1275 (c) ₹9775 (d) ₹1700
31. 31.₹2500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹600 (b) ₹3400 (c) ₹3100 (d) ₹2800
32. 32.What is the simple interest on ₹1000 at 5% per year for 4 years? (a) ₹50 (b) ₹200 (c) ₹250 (d) ₹1200
33. 33.What is the simple interest on ₹7000 at 5% per year for 5 years? (a) ₹1750 (b) ₹2100 (c) ₹8750 (d) ₹350
34. 34.The simple interest on ₹2500 for 2 years is ₹550. What is the rate per year? (a) 12% (b) 11% (c) 22% (d) 10%
35. 35.₹3000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹270 (b) ₹3360 (c) ₹3090 (d) ₹3270
36. 36.In how many years will ₹4000 earn ₹1080 simple interest at 9% per year? (a) 4 years (b) 3 years (c) 6 years (d) 2 years
37. 37.₹3000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹3630 (b) ₹630 (c) ₹3210 (d) ₹3840
38. 38.In how many years will ₹1500 earn ₹360 simple interest at 12% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
39. 39.₹9000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹12600 (b) ₹9900 (c) ₹13500 (d) ₹3600
40. 40.What is the simple interest on ₹9000 at 3% per year for 3 years? (a) ₹9810 (b) ₹1080 (c) ₹810 (d) ₹270

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