Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 475 · 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.₹6500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹1560 (b) ₹8580 (c) ₹8060 (d) ₹7020
2. 2.₹3000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹3270 (b) ₹180 (c) ₹3180 (d) ₹3090
3. 3.In how many years will ₹2000 earn ₹240 simple interest at 6% per year? (a) 1 year (b) 2 years (c) 4 years (d) 3 years
4. 4.In how many years will ₹9500 earn ₹1425 simple interest at 3% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
5. 5.The simple interest on ₹5500 for 3 years is ₹825. What is the rate per year? (a) 15% (b) 6% (c) 4% (d) 5%
6. 6.The simple interest on ₹3000 for 2 years is ₹720. What is the rate per year? (a) 12% (b) 24% (c) 11% (d) 13%
7. 7.The simple interest on ₹9500 for 5 years is ₹3325. What is the rate per year? (a) 6% (b) 8% (c) 7% (d) 35%
8. 8.In how many years will ₹7500 earn ₹2700 simple interest at 9% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
9. 9.What is the simple interest on ₹2000 at 4% per year for 4 years? (a) ₹80 (b) ₹2320 (c) ₹320 (d) ₹400
10. 10.In how many years will ₹5000 earn ₹400 simple interest at 4% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
11. 11.In how many years will ₹9500 earn ₹4750 simple interest at 10% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
12. 12.In how many years will ₹7000 earn ₹1680 simple interest at 8% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
13. 13.In how many years will ₹9000 earn ₹1080 simple interest at 6% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
14. 14.What is the simple interest on ₹6500 at 11% per year for 3 years? (a) ₹2145 (b) ₹2860 (c) ₹715 (d) ₹8645
15. 15.₹2000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹1200 (b) ₹3440 (c) ₹3200 (d) ₹2240
16. 16.The simple interest on ₹1500 for 3 years is ₹180. What is the rate per year? (a) 3% (b) 4% (c) 5% (d) 12%
17. 17.₹3000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹960 (b) ₹3240 (c) ₹4200 (d) ₹3960
18. 18.In how many years will ₹4000 earn ₹1200 simple interest at 10% per year? (a) 3 years (b) 6 years (c) 4 years (d) 2 years
19. 19.₹1000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹1400 (b) ₹1500 (c) ₹400 (d) ₹1100
20. 20.₹4500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹5175 (b) ₹4950 (c) ₹450 (d) ₹4725
21. 21.What is the simple interest on ₹5000 at 8% per year for 5 years? (a) ₹2000 (b) ₹2400 (c) ₹7000 (d) ₹400
22. 22.The simple interest on ₹5000 for 5 years is ₹1500. What is the rate per year? (a) 6% (b) 5% (c) 7% (d) 30%
23. 23.What is the simple interest on ₹3000 at 2% per year for 5 years? (a) ₹60 (b) ₹300 (c) ₹3300 (d) ₹360
24. 24.The simple interest on ₹3500 for 2 years is ₹770. What is the rate per year? (a) 10% (b) 11% (c) 22% (d) 12%
25. 25.In how many years will ₹6500 earn ₹390 simple interest at 2% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
26. 26.The simple interest on ₹6000 for 2 years is ₹600. What is the rate per year? (a) 6% (b) 10% (c) 4% (d) 5%
27. 27.In how many years will ₹3000 earn ₹1320 simple interest at 11% per year? (a) 4 years (b) 8 years (c) 3 years (d) 5 years
28. 28.In how many years will ₹5500 earn ₹440 simple interest at 4% per year? (a) 4 years (b) 3 years (c) 2 years (d) 1 year
29. 29.₹4000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹4320 (b) ₹1600 (c) ₹5920 (d) ₹5600
30. 30.What is the simple interest on ₹4500 at 4% per year for 2 years? (a) ₹180 (b) ₹4860 (c) ₹540 (d) ₹360
31. 31.₹5000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹1500 (b) ₹6500 (c) ₹5500 (d) ₹7000
32. 32.In how many years will ₹1000 earn ₹80 simple interest at 4% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
33. 33.The simple interest on ₹10000 for 4 years is ₹2400. What is the rate per year? (a) 7% (b) 5% (c) 6% (d) 24%
34. 34.What is the simple interest on ₹4500 at 9% per year for 2 years? (a) ₹810 (b) ₹405 (c) ₹5310 (d) ₹1215
35. 35.What is the simple interest on ₹2500 at 12% per year for 5 years? (a) ₹1500 (b) ₹4000 (c) ₹1800 (d) ₹300
36. 36.₹1000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹240 (b) ₹1240 (c) ₹1360 (d) ₹1120
37. 37.The simple interest on ₹6500 for 3 years is ₹1365. What is the rate per year? (a) 8% (b) 6% (c) 21% (d) 7%
38. 38.₹8500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹9010 (b) ₹9265 (c) ₹8755 (d) ₹510
39. 39.What is the simple interest on ₹5500 at 7% per year for 5 years? (a) ₹7425 (b) ₹1925 (c) ₹385 (d) ₹2310
40. 40.What is the simple interest on ₹4000 at 2% per year for 3 years? (a) ₹80 (b) ₹320 (c) ₹4240 (d) ₹240

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