Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 832 · 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.In how many years will ₹10000 earn ₹2400 simple interest at 8% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
2. 2.₹5000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹7250 (b) ₹2250 (c) ₹5450 (d) ₹7700
3. 3.What is the simple interest on ₹7000 at 2% per year for 3 years? (a) ₹560 (b) ₹420 (c) ₹140 (d) ₹7420
4. 4.The simple interest on ₹6500 for 4 years is ₹2340. What is the rate per year? (a) 10% (b) 8% (c) 36% (d) 9%
5. 5.What is the simple interest on ₹1000 at 5% per year for 5 years? (a) ₹250 (b) ₹300 (c) ₹50 (d) ₹1250
6. 6.The simple interest on ₹3000 for 5 years is ₹750. What is the rate per year? (a) 25% (b) 4% (c) 5% (d) 6%
7. 7.The simple interest on ₹1500 for 3 years is ₹225. What is the rate per year? (a) 5% (b) 15% (c) 4% (d) 6%
8. 8.What is the simple interest on ₹8000 at 11% per year for 5 years? (a) ₹5280 (b) ₹880 (c) ₹12400 (d) ₹4400
9. 9.The simple interest on ₹3500 for 4 years is ₹980. What is the rate per year? (a) 28% (b) 7% (c) 8% (d) 6%
10. 10.What is the simple interest on ₹1000 at 9% per year for 2 years? (a) ₹90 (b) ₹1180 (c) ₹180 (d) ₹270
11. 11.In how many years will ₹4500 earn ₹675 simple interest at 5% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
12. 12.The simple interest on ₹9500 for 3 years is ₹1710. What is the rate per year? (a) 7% (b) 18% (c) 6% (d) 5%
13. 13.In how many years will ₹8000 earn ₹3600 simple interest at 9% per year? (a) 10 years (b) 5 years (c) 4 years (d) 6 years
14. 14.₹9500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹10925 (b) ₹9785 (c) ₹11210 (d) ₹1425
15. 15.The simple interest on ₹3000 for 5 years is ₹1200. What is the rate per year? (a) 40% (b) 8% (c) 7% (d) 9%
16. 16.₹3000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹1800 (b) ₹4800 (c) ₹3360 (d) ₹5160
17. 17.₹3500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹560 (b) ₹4340 (c) ₹3780 (d) ₹4060
18. 18.In how many years will ₹4500 earn ₹1620 simple interest at 9% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
19. 19.The simple interest on ₹1000 for 5 years is ₹300. What is the rate per year? (a) 7% (b) 5% (c) 6% (d) 30%
20. 20.In how many years will ₹8500 earn ₹3400 simple interest at 8% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
21. 21.In how many years will ₹1000 earn ₹100 simple interest at 5% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
22. 22.The simple interest on ₹3500 for 4 years is ₹840. What is the rate per year? (a) 7% (b) 5% (c) 6% (d) 24%
23. 23.What is the simple interest on ₹1000 at 4% per year for 4 years? (a) ₹1160 (b) ₹40 (c) ₹160 (d) ₹200
24. 24.What is the simple interest on ₹3000 at 8% per year for 2 years? (a) ₹480 (b) ₹720 (c) ₹240 (d) ₹3480
25. 25.In how many years will ₹3000 earn ₹1200 simple interest at 8% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
26. 26.The simple interest on ₹1000 for 2 years is ₹100. What is the rate per year? (a) 5% (b) 4% (c) 10% (d) 6%
27. 27.₹6500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹9425 (b) ₹8840 (c) ₹2340 (d) ₹7085
28. 28.₹2500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹2800 (b) ₹250 (c) ₹2750 (d) ₹2550
29. 29.What is the simple interest on ₹3000 at 2% per year for 2 years? (a) ₹3120 (b) ₹120 (c) ₹60 (d) ₹180
30. 30.₹2500 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹3500 (b) ₹2750 (c) ₹3750 (d) ₹1000
31. 31.What is the simple interest on ₹6500 at 2% per year for 4 years? (a) ₹520 (b) ₹7020 (c) ₹650 (d) ₹130
32. 32.What is the simple interest on ₹6500 at 11% per year for 3 years? (a) ₹715 (b) ₹8645 (c) ₹2860 (d) ₹2145
33. 33.The simple interest on ₹7000 for 4 years is ₹560. What is the rate per year? (a) 8% (b) 3% (c) 1% (d) 2%
34. 34.What is the simple interest on ₹9500 at 6% per year for 5 years? (a) ₹3420 (b) ₹2850 (c) ₹12350 (d) ₹570
35. 35.In how many years will ₹4000 earn ₹1800 simple interest at 9% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
36. 36.What is the simple interest on ₹6000 at 3% per year for 4 years? (a) ₹900 (b) ₹720 (c) ₹180 (d) ₹6720
37. 37.In how many years will ₹6500 earn ₹520 simple interest at 2% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
38. 38.The simple interest on ₹4000 for 5 years is ₹800. What is the rate per year? (a) 20% (b) 3% (c) 5% (d) 4%
39. 39.The simple interest on ₹1500 for 2 years is ₹270. What is the rate per year? (a) 9% (b) 8% (c) 10% (d) 18%
40. 40.The simple interest on ₹4000 for 4 years is ₹1760. What is the rate per year? (a) 11% (b) 10% (c) 44% (d) 12%

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