Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 165 · 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 ₹1000 for 2 years is ₹180. What is the rate per year? (a) 8% (b) 10% (c) 18% (d) 9%
2. 2.What is the simple interest on ₹7000 at 4% per year for 2 years? (a) ₹840 (b) ₹560 (c) ₹7560 (d) ₹280
3. 3.The simple interest on ₹9000 for 3 years is ₹2970. What is the rate per year? (a) 12% (b) 10% (c) 33% (d) 11%
4. 4.₹6000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹6660 (b) ₹9960 (c) ₹9300 (d) ₹3300
5. 5.In how many years will ₹4000 earn ₹720 simple interest at 9% per year? (a) 4 years (b) 2 years (c) 3 years (d) 1 year
6. 6.₹9500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹10640 (b) ₹760 (c) ₹10260 (d) ₹9880
7. 7.What is the simple interest on ₹1500 at 3% per year for 5 years? (a) ₹45 (b) ₹225 (c) ₹1725 (d) ₹270
8. 8.In how many years will ₹2500 earn ₹525 simple interest at 7% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
9. 9.In how many years will ₹7500 earn ₹2250 simple interest at 10% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
10. 10.What is the simple interest on ₹1000 at 5% per year for 4 years? (a) ₹250 (b) ₹50 (c) ₹1200 (d) ₹200
11. 11.₹9500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹12920 (b) ₹2850 (c) ₹12350 (d) ₹10070
12. 12.₹2000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹2080 (b) ₹2480 (c) ₹400 (d) ₹2400
13. 13.The simple interest on ₹10000 for 5 years is ₹2000. What is the rate per year? (a) 3% (b) 5% (c) 4% (d) 20%
14. 14.₹7000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹3360 (b) ₹7840 (c) ₹11200 (d) ₹10360
15. 15.₹4500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹810 (b) ₹5715 (c) ₹5310 (d) ₹4905
16. 16.₹7500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹8700 (b) ₹1200 (c) ₹7800 (d) ₹9000
17. 17.₹9000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹9180 (b) ₹9720 (c) ₹720 (d) ₹9900
18. 18.What is the simple interest on ₹4500 at 3% per year for 2 years? (a) ₹405 (b) ₹270 (c) ₹135 (d) ₹4770
19. 19.What is the simple interest on ₹1000 at 11% per year for 3 years? (a) ₹1330 (b) ₹110 (c) ₹330 (d) ₹440
20. 20.What is the simple interest on ₹4000 at 5% per year for 3 years? (a) ₹4600 (b) ₹200 (c) ₹800 (d) ₹600
21. 21.What is the simple interest on ₹2000 at 6% per year for 2 years? (a) ₹120 (b) ₹360 (c) ₹240 (d) ₹2240
22. 22.What is the simple interest on ₹3500 at 8% per year for 2 years? (a) ₹280 (b) ₹560 (c) ₹4060 (d) ₹840
23. 23.What is the simple interest on ₹6500 at 8% per year for 5 years? (a) ₹2600 (b) ₹9100 (c) ₹3120 (d) ₹520
24. 24.₹5000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹5450 (b) ₹6800 (c) ₹7250 (d) ₹1800
25. 25.What is the simple interest on ₹7000 at 7% per year for 5 years? (a) ₹490 (b) ₹2450 (c) ₹2940 (d) ₹9450
26. 26.What is the simple interest on ₹2500 at 12% per year for 2 years? (a) ₹900 (b) ₹3100 (c) ₹600 (d) ₹300
27. 27.₹10000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹10800 (b) ₹12400 (c) ₹2400 (d) ₹13200
28. 28.What is the simple interest on ₹5500 at 8% per year for 3 years? (a) ₹6820 (b) ₹1320 (c) ₹1760 (d) ₹440
29. 29.In how many years will ₹7500 earn ₹450 simple interest at 2% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
30. 30.What is the simple interest on ₹8500 at 2% per year for 3 years? (a) ₹170 (b) ₹510 (c) ₹9010 (d) ₹680
31. 31.The simple interest on ₹3000 for 5 years is ₹1200. What is the rate per year? (a) 40% (b) 9% (c) 7% (d) 8%
32. 32.₹7500 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹8250 (b) ₹10500 (c) ₹11250 (d) ₹3000
33. 33.₹3500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹840 (b) ₹3780 (c) ₹4620 (d) ₹4340
34. 34.What is the simple interest on ₹3500 at 2% per year for 5 years? (a) ₹3850 (b) ₹70 (c) ₹420 (d) ₹350
35. 35.₹8500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹680 (b) ₹9180 (c) ₹9350 (d) ₹8670
36. 36.₹6000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹6480 (b) ₹480 (c) ₹6120 (d) ₹6600
37. 37.The simple interest on ₹8000 for 4 years is ₹3840. What is the rate per year? (a) 48% (b) 13% (c) 11% (d) 12%
38. 38.What is the simple interest on ₹2500 at 2% per year for 5 years? (a) ₹300 (b) ₹50 (c) ₹250 (d) ₹2750
39. 39.The simple interest on ₹1000 for 2 years is ₹100. What is the rate per year? (a) 4% (b) 5% (c) 6% (d) 10%
40. 40.In how many years will ₹2500 earn ₹400 simple interest at 4% per year? (a) 4 years (b) 3 years (c) 5 years (d) 8 years

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