Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 425 · 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 ₹6500 for 5 years is ₹1950. What is the rate per year? (a) 30% (b) 5% (c) 7% (d) 6%
2. 2.₹8000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹8640 (b) ₹8160 (c) ₹480 (d) ₹8480
3. 3.What is the simple interest on ₹4500 at 2% per year for 2 years? (a) ₹180 (b) ₹4680 (c) ₹90 (d) ₹270
4. 4.₹3000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹3810 (b) ₹3270 (c) ₹4080 (d) ₹810
5. 5.What is the simple interest on ₹5000 at 9% per year for 5 years? (a) ₹2700 (b) ₹2250 (c) ₹7250 (d) ₹450
6. 6.What is the simple interest on ₹3000 at 10% per year for 4 years? (a) ₹1200 (b) ₹4200 (c) ₹1500 (d) ₹300
7. 7.What is the simple interest on ₹3500 at 3% per year for 2 years? (a) ₹3710 (b) ₹210 (c) ₹315 (d) ₹105
8. 8.The simple interest on ₹1500 for 5 years is ₹525. What is the rate per year? (a) 7% (b) 8% (c) 35% (d) 6%
9. 9.In how many years will ₹9000 earn ₹1350 simple interest at 5% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
10. 10.₹9000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹9900 (b) ₹9180 (c) ₹720 (d) ₹9720
11. 11.What is the simple interest on ₹6000 at 2% per year for 3 years? (a) ₹480 (b) ₹120 (c) ₹360 (d) ₹6360
12. 12.What is the simple interest on ₹7000 at 7% per year for 2 years? (a) ₹490 (b) ₹1470 (c) ₹7980 (d) ₹980
13. 13.In how many years will ₹1000 earn ₹440 simple interest at 11% per year? (a) 5 years (b) 3 years (c) 4 years (d) 8 years
14. 14.₹8000 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹8480 (b) ₹1920 (c) ₹9920 (d) ₹10400
15. 15.In how many years will ₹6000 earn ₹1200 simple interest at 4% per year? (a) 6 years (b) 5 years (c) 10 years (d) 4 years
16. 16.₹7000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹9940 (b) ₹9450 (c) ₹2450 (d) ₹7490
17. 17.The simple interest on ₹4500 for 4 years is ₹1620. What is the rate per year? (a) 36% (b) 8% (c) 9% (d) 10%
18. 18.The simple interest on ₹8500 for 5 years is ₹850. What is the rate per year? (a) 1% (b) 10% (c) 3% (d) 2%
19. 19.₹5000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹5300 (b) ₹6200 (c) ₹900 (d) ₹5900
20. 20.₹3000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹3150 (b) ₹3450 (c) ₹3600 (d) ₹450
21. 21.What is the simple interest on ₹10000 at 9% per year for 4 years? (a) ₹13600 (b) ₹4500 (c) ₹3600 (d) ₹900
22. 22.The simple interest on ₹1000 for 5 years is ₹400. What is the rate per year? (a) 7% (b) 40% (c) 8% (d) 9%
23. 23.₹1500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹1950 (b) ₹2100 (c) ₹450 (d) ₹1650
24. 24.What is the simple interest on ₹3500 at 6% per year for 3 years? (a) ₹630 (b) ₹4130 (c) ₹840 (d) ₹210
25. 25.₹10000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹11500 (b) ₹10500 (c) ₹12000 (d) ₹1500
26. 26.What is the simple interest on ₹4000 at 5% per year for 5 years? (a) ₹1000 (b) ₹200 (c) ₹1200 (d) ₹5000
27. 27.What is the simple interest on ₹6000 at 12% per year for 4 years? (a) ₹720 (b) ₹2880 (c) ₹3600 (d) ₹8880
28. 28.₹7500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹7725 (b) ₹8625 (c) ₹8400 (d) ₹900
29. 29.The simple interest on ₹5000 for 4 years is ₹600. What is the rate per year? (a) 4% (b) 3% (c) 12% (d) 2%
30. 30.What is the simple interest on ₹8500 at 4% per year for 5 years? (a) ₹10200 (b) ₹2040 (c) ₹1700 (d) ₹340
31. 31.In how many years will ₹5500 earn ₹1815 simple interest at 11% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
32. 32.₹7500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹9900 (b) ₹8100 (c) ₹2400 (d) ₹10500
33. 33.₹3000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹3720 (b) ₹480 (c) ₹3240 (d) ₹3480
34. 34.What is the simple interest on ₹7500 at 8% per year for 5 years? (a) ₹10500 (b) ₹600 (c) ₹3000 (d) ₹3600
35. 35.The simple interest on ₹10000 for 2 years is ₹600. What is the rate per year? (a) 2% (b) 3% (c) 4% (d) 6%
36. 36.In how many years will ₹2000 earn ₹700 simple interest at 7% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
37. 37.What is the simple interest on ₹7500 at 7% per year for 2 years? (a) ₹1050 (b) ₹8550 (c) ₹525 (d) ₹1575
38. 38.The simple interest on ₹3500 for 5 years is ₹525. What is the rate per year? (a) 3% (b) 4% (c) 15% (d) 2%
39. 39.What is the simple interest on ₹5000 at 3% per year for 4 years? (a) ₹150 (b) ₹750 (c) ₹600 (d) ₹5600
40. 40.₹3500 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹3850 (b) ₹5600 (c) ₹1750 (d) ₹5250

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