Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 115 · 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.₹8000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹8720 (b) ₹2880 (c) ₹10880 (d) ₹11600
2. 2.The simple interest on ₹5500 for 5 years is ₹1650. What is the rate per year? (a) 7% (b) 6% (c) 5% (d) 30%
3. 3.₹1000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹400 (b) ₹1080 (c) ₹1400 (d) ₹1480
4. 4.What is the simple interest on ₹2000 at 2% per year for 3 years? (a) ₹160 (b) ₹120 (c) ₹2120 (d) ₹40
5. 5.₹8000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹8800 (b) ₹12800 (c) ₹12000 (d) ₹4000
6. 6.In how many years will ₹3000 earn ₹540 simple interest at 9% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
7. 7.What is the simple interest on ₹7500 at 3% per year for 4 years? (a) ₹1125 (b) ₹8400 (c) ₹900 (d) ₹225
8. 8.In how many years will ₹7000 earn ₹3080 simple interest at 11% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
9. 9.₹5500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹7700 (b) ₹6050 (c) ₹7150 (d) ₹1650
10. 10.What is the simple interest on ₹2000 at 5% per year for 4 years? (a) ₹100 (b) ₹400 (c) ₹2400 (d) ₹500
11. 11.The simple interest on ₹1500 for 4 years is ₹540. What is the rate per year? (a) 9% (b) 8% (c) 10% (d) 36%
12. 12.What is the simple interest on ₹3000 at 3% per year for 2 years? (a) ₹3180 (b) ₹270 (c) ₹90 (d) ₹180
13. 13.The simple interest on ₹7000 for 2 years is ₹560. What is the rate per year? (a) 8% (b) 4% (c) 5% (d) 3%
14. 14.₹2000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹2360 (b) ₹2240 (c) ₹2120 (d) ₹240
15. 15.The simple interest on ₹1000 for 3 years is ₹240. What is the rate per year? (a) 24% (b) 9% (c) 8% (d) 7%
16. 16.What is the simple interest on ₹4000 at 10% per year for 2 years? (a) ₹4800 (b) ₹400 (c) ₹800 (d) ₹1200
17. 17.What is the simple interest on ₹6500 at 4% per year for 5 years? (a) ₹260 (b) ₹1560 (c) ₹1300 (d) ₹7800
18. 18.What is the simple interest on ₹8500 at 10% per year for 4 years? (a) ₹4250 (b) ₹11900 (c) ₹3400 (d) ₹850
19. 19.The simple interest on ₹1000 for 5 years is ₹600. What is the rate per year? (a) 13% (b) 60% (c) 11% (d) 12%
20. 20.₹5500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹6325 (b) ₹5665 (c) ₹825 (d) ₹6490
21. 21.₹5000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹2000 (b) ₹7000 (c) ₹7400 (d) ₹5400
22. 22.What is the simple interest on ₹8000 at 5% per year for 2 years? (a) ₹400 (b) ₹1200 (c) ₹800 (d) ₹8800
23. 23.What is the simple interest on ₹2500 at 8% per year for 4 years? (a) ₹1000 (b) ₹3300 (c) ₹800 (d) ₹200
24. 24.The simple interest on ₹4000 for 2 years is ₹160. What is the rate per year? (a) 4% (b) 1% (c) 3% (d) 2%
25. 25.What is the simple interest on ₹8000 at 2% per year for 5 years? (a) ₹160 (b) ₹960 (c) ₹800 (d) ₹8800
26. 26.What is the simple interest on ₹5500 at 11% per year for 5 years? (a) ₹3630 (b) ₹8525 (c) ₹605 (d) ₹3025
27. 27.What is the simple interest on ₹3000 at 2% per year for 2 years? (a) ₹60 (b) ₹180 (c) ₹3120 (d) ₹120
28. 28.The simple interest on ₹3000 for 2 years is ₹480. What is the rate per year? (a) 7% (b) 9% (c) 16% (d) 8%
29. 29.₹8000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹8320 (b) ₹9600 (c) ₹9280 (d) ₹1280
30. 30.What is the simple interest on ₹2500 at 2% per year for 3 years? (a) ₹150 (b) ₹200 (c) ₹50 (d) ₹2650
31. 31.In how many years will ₹6500 earn ₹1300 simple interest at 5% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
32. 32.The simple interest on ₹4000 for 3 years is ₹480. What is the rate per year? (a) 12% (b) 4% (c) 3% (d) 5%
33. 33.₹3000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹3090 (b) ₹3450 (c) ₹3360 (d) ₹360
34. 34.What is the simple interest on ₹2000 at 7% per year for 4 years? (a) ₹560 (b) ₹700 (c) ₹140 (d) ₹2560
35. 35.In how many years will ₹6500 earn ₹585 simple interest at 3% per year? (a) 2 years (b) 3 years (c) 4 years (d) 6 years
36. 36.The simple interest on ₹8000 for 3 years is ₹2640. What is the rate per year? (a) 12% (b) 33% (c) 10% (d) 11%
37. 37.What is the simple interest on ₹4000 at 4% per year for 5 years? (a) ₹960 (b) ₹4800 (c) ₹800 (d) ₹160
38. 38.₹6000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹7440 (b) ₹6720 (c) ₹1440 (d) ₹8160
39. 39.In how many years will ₹6000 earn ₹1440 simple interest at 6% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
40. 40.The simple interest on ₹6000 for 5 years is ₹1200. What is the rate per year? (a) 20% (b) 5% (c) 3% (d) 4%

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