Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 952 · 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 ₹4500 for 5 years is ₹1800. What is the rate per year? (a) 7% (b) 9% (c) 40% (d) 8%
2. 2.In how many years will ₹8000 earn ₹2640 simple interest at 11% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
3. 3.What is the simple interest on ₹2000 at 8% per year for 2 years? (a) ₹480 (b) ₹320 (c) ₹160 (d) ₹2320
4. 4.What is the simple interest on ₹7000 at 9% per year for 4 years? (a) ₹630 (b) ₹9520 (c) ₹2520 (d) ₹3150
5. 5.What is the simple interest on ₹2500 at 3% per year for 2 years? (a) ₹225 (b) ₹75 (c) ₹2650 (d) ₹150
6. 6.In how many years will ₹1000 earn ₹40 simple interest at 2% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
7. 7.₹3000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹3990 (b) ₹3330 (c) ₹990 (d) ₹4320
8. 8.What is the simple interest on ₹7500 at 9% per year for 2 years? (a) ₹2025 (b) ₹675 (c) ₹8850 (d) ₹1350
9. 9.₹10000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹4800 (b) ₹11200 (c) ₹16000 (d) ₹14800
10. 10.In how many years will ₹3500 earn ₹700 simple interest at 4% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
11. 11.₹9500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹380 (b) ₹9690 (c) ₹9880 (d) ₹10070
12. 12.What is the simple interest on ₹9000 at 4% per year for 2 years? (a) ₹720 (b) ₹9720 (c) ₹1080 (d) ₹360
13. 13.₹3500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹3675 (b) ₹4200 (c) ₹700 (d) ₹4375
14. 14.What is the simple interest on ₹1000 at 7% per year for 3 years? (a) ₹70 (b) ₹210 (c) ₹1210 (d) ₹280
15. 15.The simple interest on ₹4500 for 5 years is ₹2250. What is the rate per year? (a) 11% (b) 50% (c) 9% (d) 10%
16. 16.₹9000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹2700 (b) ₹9900 (c) ₹11700 (d) ₹12600
17. 17.What is the simple interest on ₹5500 at 2% per year for 3 years? (a) ₹5830 (b) ₹110 (c) ₹330 (d) ₹440
18. 18.The simple interest on ₹2000 for 4 years is ₹640. What is the rate per year? (a) 9% (b) 7% (c) 32% (d) 8%
19. 19.₹5000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹5250 (b) ₹1250 (c) ₹6250 (d) ₹6500
20. 20.₹7000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹700 (b) ₹7350 (c) ₹7700 (d) ₹8050
21. 21.In how many years will ₹1500 earn ₹375 simple interest at 5% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
22. 22.In how many years will ₹8000 earn ₹1280 simple interest at 4% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
23. 23.The simple interest on ₹1500 for 3 years is ₹225. What is the rate per year? (a) 15% (b) 5% (c) 6% (d) 4%
24. 24.What is the simple interest on ₹5000 at 4% per year for 4 years? (a) ₹200 (b) ₹800 (c) ₹5800 (d) ₹1000
25. 25.₹7000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹9450 (b) ₹7490 (c) ₹8960 (d) ₹1960
26. 26.The simple interest on ₹1000 for 2 years is ₹60. What is the rate per year? (a) 4% (b) 3% (c) 6% (d) 2%
27. 27.₹7500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹7800 (b) ₹1200 (c) ₹8700 (d) ₹9000
28. 28.₹6000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹9600 (b) ₹2880 (c) ₹8880 (d) ₹6720
29. 29.In how many years will ₹4500 earn ₹270 simple interest at 2% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
30. 30.What is the simple interest on ₹4000 at 11% per year for 3 years? (a) ₹440 (b) ₹1760 (c) ₹5320 (d) ₹1320
31. 31.In how many years will ₹1000 earn ₹440 simple interest at 11% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
32. 32.In how many years will ₹8000 earn ₹2160 simple interest at 9% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
33. 33.The simple interest on ₹7500 for 3 years is ₹1350. What is the rate per year? (a) 5% (b) 7% (c) 6% (d) 18%
34. 34.₹5000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹5500 (b) ₹2500 (c) ₹8000 (d) ₹7500
35. 35.₹5500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹6820 (b) ₹6600 (c) ₹5720 (d) ₹1100
36. 36.What is the simple interest on ₹4500 at 8% per year for 3 years? (a) ₹1440 (b) ₹1080 (c) ₹5580 (d) ₹360
37. 37.The simple interest on ₹4500 for 4 years is ₹360. What is the rate per year? (a) 2% (b) 8% (c) 3% (d) 1%
38. 38.In how many years will ₹8000 earn ₹960 simple interest at 3% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
39. 39.₹5000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹1200 (b) ₹6200 (c) ₹5600 (d) ₹6800
40. 40.₹8500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹11475 (b) ₹9095 (c) ₹10880 (d) ₹2380

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