Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 983 · 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 ₹4500 earn ₹945 simple interest at 7% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
2. 2.The simple interest on ₹2000 for 2 years is ₹160. What is the rate per year? (a) 3% (b) 5% (c) 8% (d) 4%
3. 3.The simple interest on ₹3000 for 5 years is ₹450. What is the rate per year? (a) 3% (b) 2% (c) 15% (d) 4%
4. 4.What is the simple interest on ₹8500 at 2% per year for 5 years? (a) ₹9350 (b) ₹1020 (c) ₹170 (d) ₹850
5. 5.The simple interest on ₹4500 for 3 years is ₹270. What is the rate per year? (a) 3% (b) 1% (c) 6% (d) 2%
6. 6.The simple interest on ₹8000 for 2 years is ₹1280. What is the rate per year? (a) 7% (b) 8% (c) 16% (d) 9%
7. 7.₹3500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹4235 (b) ₹3745 (c) ₹735 (d) ₹4480
8. 8.The simple interest on ₹2500 for 2 years is ₹100. What is the rate per year? (a) 2% (b) 4% (c) 1% (d) 3%
9. 9.The simple interest on ₹5500 for 4 years is ₹1320. What is the rate per year? (a) 24% (b) 7% (c) 6% (d) 5%
10. 10.₹3000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹3750 (b) ₹750 (c) ₹3900 (d) ₹3150
11. 11.The simple interest on ₹2000 for 4 years is ₹560. What is the rate per year? (a) 28% (b) 8% (c) 7% (d) 6%
12. 12.The simple interest on ₹5000 for 2 years is ₹300. What is the rate per year? (a) 3% (b) 4% (c) 2% (d) 6%
13. 13.In how many years will ₹9500 earn ₹570 simple interest at 2% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
14. 14.What is the simple interest on ₹7000 at 4% per year for 2 years? (a) ₹560 (b) ₹7560 (c) ₹840 (d) ₹280
15. 15.In how many years will ₹3000 earn ₹480 simple interest at 4% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
16. 16.₹4500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹4770 (b) ₹810 (c) ₹5580 (d) ₹5310
17. 17.₹3500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹1400 (b) ₹4900 (c) ₹5180 (d) ₹3780
18. 18.In how many years will ₹4000 earn ₹320 simple interest at 2% per year? (a) 8 years (b) 5 years (c) 4 years (d) 3 years
19. 19.The simple interest on ₹3500 for 4 years is ₹420. What is the rate per year? (a) 3% (b) 2% (c) 12% (d) 4%
20. 20.₹1500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹120 (b) ₹1530 (c) ₹1650 (d) ₹1620
21. 21.₹10000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹10200 (b) ₹10800 (c) ₹10600 (d) ₹600
22. 22.What is the simple interest on ₹5000 at 4% per year for 2 years? (a) ₹400 (b) ₹200 (c) ₹600 (d) ₹5400
23. 23.In how many years will ₹4000 earn ₹600 simple interest at 3% per year? (a) 6 years (b) 5 years (c) 4 years (d) 10 years
24. 24.What is the simple interest on ₹7000 at 10% per year for 2 years? (a) ₹8400 (b) ₹2100 (c) ₹700 (d) ₹1400
25. 25.₹2000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹2900 (b) ₹3080 (c) ₹2180 (d) ₹900
26. 26.The simple interest on ₹7000 for 2 years is ₹1260. What is the rate per year? (a) 8% (b) 10% (c) 9% (d) 18%
27. 27.What is the simple interest on ₹6000 at 11% per year for 3 years? (a) ₹2640 (b) ₹7980 (c) ₹1980 (d) ₹660
28. 28.What is the simple interest on ₹6500 at 7% per year for 2 years? (a) ₹910 (b) ₹7410 (c) ₹1365 (d) ₹455
29. 29.₹7500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹7950 (b) ₹8175 (c) ₹450 (d) ₹7725
30. 30.The simple interest on ₹1000 for 5 years is ₹400. What is the rate per year? (a) 7% (b) 40% (c) 9% (d) 8%
31. 31.₹2000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹2300 (b) ₹2400 (c) ₹300 (d) ₹2100
32. 32.What is the simple interest on ₹2000 at 4% per year for 3 years? (a) ₹240 (b) ₹80 (c) ₹320 (d) ₹2240
33. 33.The simple interest on ₹3000 for 5 years is ₹1350. What is the rate per year? (a) 45% (b) 10% (c) 8% (d) 9%
34. 34.The simple interest on ₹2000 for 5 years is ₹800. What is the rate per year? (a) 40% (b) 7% (c) 8% (d) 9%
35. 35.₹4500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹4770 (b) ₹180 (c) ₹4590 (d) ₹4680
36. 36.What is the simple interest on ₹3500 at 3% per year for 2 years? (a) ₹3710 (b) ₹210 (c) ₹315 (d) ₹105
37. 37.What is the simple interest on ₹8000 at 4% per year for 2 years? (a) ₹320 (b) ₹640 (c) ₹8640 (d) ₹960
38. 38.₹2500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹2750 (b) ₹3500 (c) ₹750 (d) ₹3250
39. 39.₹6000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹8160 (b) ₹6540 (c) ₹8700 (d) ₹2160
40. 40.In how many years will ₹7500 earn ₹4125 simple interest at 11% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years

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