Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 392 · 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 ₹7500 for 3 years is ₹1350. What is the rate per year? (a) 6% (b) 5% (c) 7% (d) 18%
2. 2.In how many years will ₹7000 earn ₹700 simple interest at 2% per year? (a) 10 years (b) 5 years (c) 4 years (d) 6 years
3. 3.What is the simple interest on ₹4000 at 4% per year for 4 years? (a) ₹160 (b) ₹4640 (c) ₹800 (d) ₹640
4. 4.₹2500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹2875 (b) ₹2800 (c) ₹2575 (d) ₹300
5. 5.₹1000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹160 (b) ₹1240 (c) ₹1080 (d) ₹1160
6. 6.₹1500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹1575 (b) ₹1875 (c) ₹300 (d) ₹1800
7. 7.The simple interest on ₹1000 for 3 years is ₹360. What is the rate per year? (a) 36% (b) 12% (c) 13% (d) 11%
8. 8.In how many years will ₹10000 earn ₹2200 simple interest at 11% per year? (a) 2 years (b) 4 years (c) 1 year (d) 3 years
9. 9.In how many years will ₹8000 earn ₹2160 simple interest at 9% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years
10. 10.₹6000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹6240 (b) ₹720 (c) ₹6960 (d) ₹6720
11. 11.₹1500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹1530 (b) ₹60 (c) ₹1590 (d) ₹1560
12. 12.₹5500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹1210 (b) ₹6105 (c) ₹6710 (d) ₹7315
13. 13.₹1000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹1210 (b) ₹1070 (c) ₹1280 (d) ₹210
14. 14.₹3000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹3120 (b) ₹120 (c) ₹3180 (d) ₹3060
15. 15.₹2000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹2160 (b) ₹2240 (c) ₹160 (d) ₹2080
16. 16.₹3500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹1225 (b) ₹4725 (c) ₹3745 (d) ₹4970
17. 17.The simple interest on ₹1000 for 5 years is ₹300. What is the rate per year? (a) 5% (b) 6% (c) 30% (d) 7%
18. 18.What is the simple interest on ₹3000 at 4% per year for 2 years? (a) ₹120 (b) ₹360 (c) ₹240 (d) ₹3240
19. 19.In how many years will ₹2500 earn ₹250 simple interest at 5% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
20. 20.In how many years will ₹3000 earn ₹180 simple interest at 3% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
21. 21.What is the simple interest on ₹4500 at 5% per year for 2 years? (a) ₹675 (b) ₹225 (c) ₹450 (d) ₹4950
22. 22.₹8000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹10800 (b) ₹8560 (c) ₹11360 (d) ₹2800
23. 23.What is the simple interest on ₹7000 at 4% per year for 3 years? (a) ₹840 (b) ₹7840 (c) ₹1120 (d) ₹280
24. 24.₹2500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹3175 (b) ₹2725 (c) ₹675 (d) ₹3400
25. 25.₹2000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹440 (b) ₹2440 (c) ₹2660 (d) ₹2220
26. 26.In how many years will ₹6000 earn ₹1620 simple interest at 9% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
27. 27.₹3500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹4200 (b) ₹3640 (c) ₹560 (d) ₹4060
28. 28.What is the simple interest on ₹2500 at 9% per year for 3 years? (a) ₹3175 (b) ₹225 (c) ₹675 (d) ₹900
29. 29.The simple interest on ₹10000 for 2 years is ₹2400. What is the rate per year? (a) 13% (b) 24% (c) 11% (d) 12%
30. 30.The simple interest on ₹8000 for 3 years is ₹720. What is the rate per year? (a) 4% (b) 3% (c) 9% (d) 2%
31. 31.The simple interest on ₹9500 for 2 years is ₹380. What is the rate per year? (a) 3% (b) 2% (c) 4% (d) 1%
32. 32.In how many years will ₹4500 earn ₹405 simple interest at 3% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years
33. 33.₹4500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹4995 (b) ₹5985 (c) ₹5490 (d) ₹990
34. 34.What is the simple interest on ₹8000 at 10% per year for 3 years? (a) ₹800 (b) ₹2400 (c) ₹3200 (d) ₹10400
35. 35.₹3500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹4760 (b) ₹3815 (c) ₹1260 (d) ₹5075
36. 36.In how many years will ₹9500 earn ₹1425 simple interest at 3% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
37. 37.In how many years will ₹8500 earn ₹1020 simple interest at 6% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
38. 38.What is the simple interest on ₹10000 at 10% per year for 3 years? (a) ₹1000 (b) ₹3000 (c) ₹4000 (d) ₹13000
39. 39.What is the simple interest on ₹7000 at 8% per year for 3 years? (a) ₹1680 (b) ₹2240 (c) ₹560 (d) ₹8680
40. 40.In how many years will ₹9000 earn ₹1800 simple interest at 5% per year? (a) 4 years (b) 5 years (c) 3 years (d) 8 years

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