Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 807 · 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 ₹10000 for 2 years is ₹2400. What is the rate per year? (a) 11% (b) 24% (c) 12% (d) 13%
2. 2.The simple interest on ₹10000 for 3 years is ₹600. What is the rate per year? (a) 3% (b) 6% (c) 2% (d) 1%
3. 3.₹9000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹10080 (b) ₹720 (c) ₹9720 (d) ₹9360
4. 4.₹1500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹1605 (b) ₹1920 (c) ₹315 (d) ₹1815
5. 5.₹2500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹300 (b) ₹2875 (c) ₹2800 (d) ₹2575
6. 6.In how many years will ₹8500 earn ₹1700 simple interest at 4% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
7. 7.The simple interest on ₹1000 for 5 years is ₹200. What is the rate per year? (a) 5% (b) 3% (c) 20% (d) 4%
8. 8.What is the simple interest on ₹5000 at 10% per year for 5 years? (a) ₹2500 (b) ₹3000 (c) ₹7500 (d) ₹500
9. 9.In how many years will ₹3500 earn ₹525 simple interest at 5% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
10. 10.In how many years will ₹7500 earn ₹2250 simple interest at 10% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
11. 11.The simple interest on ₹1000 for 2 years is ₹40. What is the rate per year? (a) 4% (b) 3% (c) 1% (d) 2%
12. 12.What is the simple interest on ₹10000 at 8% per year for 3 years? (a) ₹800 (b) ₹2400 (c) ₹3200 (d) ₹12400
13. 13.The simple interest on ₹6000 for 2 years is ₹240. What is the rate per year? (a) 2% (b) 3% (c) 1% (d) 4%
14. 14.In how many years will ₹9500 earn ₹3420 simple interest at 9% per year? (a) 5 years (b) 8 years (c) 3 years (d) 4 years
15. 15.What is the simple interest on ₹5000 at 12% per year for 3 years? (a) ₹6800 (b) ₹2400 (c) ₹600 (d) ₹1800
16. 16.What is the simple interest on ₹5000 at 4% per year for 2 years? (a) ₹200 (b) ₹600 (c) ₹400 (d) ₹5400
17. 17.₹2500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹3100 (b) ₹600 (c) ₹2650 (d) ₹3250
18. 18.The simple interest on ₹1500 for 5 years is ₹300. What is the rate per year? (a) 5% (b) 4% (c) 3% (d) 20%
19. 19.In how many years will ₹3500 earn ₹630 simple interest at 6% per year? (a) 3 years (b) 4 years (c) 2 years (d) 6 years
20. 20.₹3000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹420 (b) ₹3210 (c) ₹3630 (d) ₹3420
21. 21.What is the simple interest on ₹2000 at 8% per year for 2 years? (a) ₹480 (b) ₹320 (c) ₹2320 (d) ₹160
22. 22.What is the simple interest on ₹7000 at 7% per year for 2 years? (a) ₹980 (b) ₹7980 (c) ₹1470 (d) ₹490
23. 23.₹9500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹2850 (b) ₹12350 (c) ₹10450 (d) ₹13300
24. 24.What is the simple interest on ₹6000 at 4% per year for 2 years? (a) ₹480 (b) ₹720 (c) ₹240 (d) ₹6480
25. 25.In how many years will ₹9500 earn ₹950 simple interest at 5% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
26. 26.In how many years will ₹10000 earn ₹1500 simple interest at 3% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
27. 27.In how many years will ₹3500 earn ₹700 simple interest at 5% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
28. 28.What is the simple interest on ₹1500 at 7% per year for 4 years? (a) ₹105 (b) ₹525 (c) ₹420 (d) ₹1920
29. 29.What is the simple interest on ₹4500 at 3% per year for 3 years? (a) ₹135 (b) ₹405 (c) ₹4905 (d) ₹540
30. 30.The simple interest on ₹5500 for 4 years is ₹1980. What is the rate per year? (a) 36% (b) 9% (c) 10% (d) 8%
31. 31.What is the simple interest on ₹3500 at 5% per year for 2 years? (a) ₹525 (b) ₹350 (c) ₹3850 (d) ₹175
32. 32.₹7000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹7420 (b) ₹7560 (c) ₹7140 (d) ₹420
33. 33.The simple interest on ₹9500 for 4 years is ₹3040. What is the rate per year? (a) 7% (b) 9% (c) 8% (d) 32%
34. 34.In how many years will ₹4000 earn ₹480 simple interest at 3% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
35. 35.In how many years will ₹4500 earn ₹720 simple interest at 4% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
36. 36.In how many years will ₹5000 earn ₹900 simple interest at 9% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years
37. 37.What is the simple interest on ₹6500 at 3% per year for 2 years? (a) ₹6890 (b) ₹390 (c) ₹195 (d) ₹585
38. 38.What is the simple interest on ₹1000 at 5% per year for 4 years? (a) ₹50 (b) ₹200 (c) ₹1200 (d) ₹250
39. 39.What is the simple interest on ₹4500 at 11% per year for 3 years? (a) ₹495 (b) ₹1485 (c) ₹5985 (d) ₹1980
40. 40.₹7500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹10200 (b) ₹9300 (c) ₹8400 (d) ₹1800

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