Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 753 · 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.₹8000 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹2400 (b) ₹8480 (c) ₹10400 (d) ₹10880
2. 2.The simple interest on ₹1000 for 3 years is ₹90. What is the rate per year? (a) 9% (b) 4% (c) 2% (d) 3%
3. 3.The simple interest on ₹6000 for 3 years is ₹1260. What is the rate per year? (a) 6% (b) 7% (c) 8% (d) 21%
4. 4.In how many years will ₹3500 earn ₹1400 simple interest at 8% per year? (a) 5 years (b) 6 years (c) 4 years (d) 10 years
5. 5.The simple interest on ₹2000 for 5 years is ₹1000. What is the rate per year? (a) 10% (b) 11% (c) 9% (d) 50%
6. 6.₹1000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹1040 (b) ₹80 (c) ₹1080 (d) ₹1120
7. 7.What is the simple interest on ₹1500 at 4% per year for 3 years? (a) ₹1680 (b) ₹240 (c) ₹60 (d) ₹180
8. 8.The simple interest on ₹10000 for 2 years is ₹1200. What is the rate per year? (a) 6% (b) 5% (c) 7% (d) 12%
9. 9.₹6000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹6480 (b) ₹6120 (c) ₹6360 (d) ₹360
10. 10.₹1000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹1160 (b) ₹160 (c) ₹1040 (d) ₹1200
11. 11.₹5000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹5150 (b) ₹5450 (c) ₹5300 (d) ₹300
12. 12.In how many years will ₹4000 earn ₹800 simple interest at 4% per year? (a) 5 years (b) 10 years (c) 6 years (d) 4 years
13. 13.₹6000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹1500 (b) ₹6300 (c) ₹7800 (d) ₹7500
14. 14.In how many years will ₹9000 earn ₹810 simple interest at 3% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
15. 15.What is the simple interest on ₹8500 at 10% per year for 5 years? (a) ₹12750 (b) ₹4250 (c) ₹850 (d) ₹5100
16. 16.₹8500 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹12325 (b) ₹9265 (c) ₹13090 (d) ₹3825
17. 17.The simple interest on ₹1000 for 3 years is ₹300. What is the rate per year? (a) 9% (b) 11% (c) 10% (d) 30%
18. 18.₹6000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹7680 (b) ₹8100 (c) ₹6420 (d) ₹1680
19. 19.In how many years will ₹8000 earn ₹960 simple interest at 4% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
20. 20.The simple interest on ₹3000 for 4 years is ₹1440. What is the rate per year? (a) 12% (b) 13% (c) 11% (d) 48%
21. 21.What is the simple interest on ₹1500 at 12% per year for 5 years? (a) ₹1080 (b) ₹180 (c) ₹900 (d) ₹2400
22. 22.What is the simple interest on ₹1500 at 10% per year for 2 years? (a) ₹1800 (b) ₹450 (c) ₹300 (d) ₹150
23. 23.The simple interest on ₹10000 for 4 years is ₹4800. What is the rate per year? (a) 12% (b) 48% (c) 11% (d) 13%
24. 24.In how many years will ₹6500 earn ₹650 simple interest at 2% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
25. 25.₹4000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹5120 (b) ₹4280 (c) ₹5400 (d) ₹1120
26. 26.The simple interest on ₹3000 for 3 years is ₹360. What is the rate per year? (a) 3% (b) 5% (c) 12% (d) 4%
27. 27.What is the simple interest on ₹1500 at 3% per year for 2 years? (a) ₹1590 (b) ₹45 (c) ₹135 (d) ₹90
28. 28.₹7500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹8175 (b) ₹1350 (c) ₹8850 (d) ₹9525
29. 29.What is the simple interest on ₹5500 at 5% per year for 5 years? (a) ₹275 (b) ₹6875 (c) ₹1375 (d) ₹1650
30. 30.₹9500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹11020 (b) ₹1140 (c) ₹10640 (d) ₹9880
31. 31.The simple interest on ₹3500 for 4 years is ₹560. What is the rate per year? (a) 16% (b) 5% (c) 3% (d) 4%
32. 32.₹3500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹3780 (b) ₹5180 (c) ₹1400 (d) ₹4900
33. 33.In how many years will ₹5000 earn ₹1200 simple interest at 12% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
34. 34.In how many years will ₹5500 earn ₹2750 simple interest at 10% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
35. 35.₹9500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹9975 (b) ₹11875 (c) ₹1900 (d) ₹11400
36. 36.In how many years will ₹9500 earn ₹1900 simple interest at 5% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
37. 37.The simple interest on ₹2500 for 5 years is ₹375. What is the rate per year? (a) 2% (b) 3% (c) 4% (d) 15%
38. 38.What is the simple interest on ₹9500 at 10% per year for 3 years? (a) ₹950 (b) ₹3800 (c) ₹12350 (d) ₹2850
39. 39.₹2500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹100 (b) ₹2650 (c) ₹2600 (d) ₹2550
40. 40.What is the simple interest on ₹8500 at 5% per year for 3 years? (a) ₹425 (b) ₹1700 (c) ₹1275 (d) ₹9775

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