Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 911 · 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 ₹3000 earn ₹180 simple interest at 3% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
2. 2.The simple interest on ₹7500 for 2 years is ₹450. What is the rate per year? (a) 6% (b) 3% (c) 4% (d) 2%
3. 3.In how many years will ₹8000 earn ₹3840 simple interest at 12% per year? (a) 5 years (b) 4 years (c) 3 years (d) 8 years
4. 4.The simple interest on ₹1500 for 3 years is ₹135. What is the rate per year? (a) 9% (b) 3% (c) 2% (d) 4%
5. 5.₹2000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹880 (b) ₹3100 (c) ₹2880 (d) ₹2220
6. 6.What is the simple interest on ₹6000 at 12% per year for 2 years? (a) ₹2160 (b) ₹7440 (c) ₹1440 (d) ₹720
7. 7.In how many years will ₹6500 earn ₹1950 simple interest at 6% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
8. 8.The simple interest on ₹2000 for 2 years is ₹120. What is the rate per year? (a) 4% (b) 3% (c) 6% (d) 2%
9. 9.What is the simple interest on ₹2500 at 8% per year for 5 years? (a) ₹200 (b) ₹1000 (c) ₹3500 (d) ₹1200
10. 10.The simple interest on ₹10000 for 4 years is ₹2400. What is the rate per year? (a) 24% (b) 6% (c) 7% (d) 5%
11. 11.What is the simple interest on ₹3500 at 4% per year for 3 years? (a) ₹3920 (b) ₹140 (c) ₹560 (d) ₹420
12. 12.In how many years will ₹7000 earn ₹2100 simple interest at 6% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
13. 13.In how many years will ₹1500 earn ₹120 simple interest at 4% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
14. 14.₹7000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹7280 (b) ₹1120 (c) ₹8120 (d) ₹8400
15. 15.₹5500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹5830 (b) ₹660 (c) ₹6490 (d) ₹6160
16. 16.₹10000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹1000 (b) ₹11200 (c) ₹10200 (d) ₹11000
17. 17.₹9000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹4950 (b) ₹9990 (c) ₹14940 (d) ₹13950
18. 18.In how many years will ₹1500 earn ₹225 simple interest at 3% per year? (a) 6 years (b) 5 years (c) 4 years (d) 10 years
19. 19.The simple interest on ₹3500 for 3 years is ₹525. What is the rate per year? (a) 15% (b) 6% (c) 4% (d) 5%
20. 20.The simple interest on ₹9500 for 3 years is ₹2850. What is the rate per year? (a) 30% (b) 10% (c) 11% (d) 9%
21. 21.₹3000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹240 (b) ₹3120 (c) ₹3240 (d) ₹3360
22. 22.In how many years will ₹7000 earn ₹1680 simple interest at 8% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
23. 23.In how many years will ₹9500 earn ₹950 simple interest at 5% per year? (a) 2 years (b) 3 years (c) 1 year (d) 4 years
24. 24.What is the simple interest on ₹6500 at 7% per year for 4 years? (a) ₹455 (b) ₹8320 (c) ₹2275 (d) ₹1820
25. 25.₹9500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹3800 (b) ₹10260 (c) ₹14060 (d) ₹13300
26. 26.What is the simple interest on ₹1000 at 3% per year for 3 years? (a) ₹120 (b) ₹90 (c) ₹30 (d) ₹1090
27. 27.What is the simple interest on ₹6500 at 3% per year for 2 years? (a) ₹585 (b) ₹195 (c) ₹390 (d) ₹6890
28. 28.What is the simple interest on ₹4500 at 6% per year for 4 years? (a) ₹5580 (b) ₹1080 (c) ₹1350 (d) ₹270
29. 29.₹4000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹4400 (b) ₹6000 (c) ₹6400 (d) ₹2000
30. 30.What is the simple interest on ₹3000 at 8% per year for 2 years? (a) ₹720 (b) ₹240 (c) ₹480 (d) ₹3480
31. 31.The simple interest on ₹9500 for 2 years is ₹1900. What is the rate per year? (a) 20% (b) 9% (c) 11% (d) 10%
32. 32.What is the simple interest on ₹7500 at 5% per year for 5 years? (a) ₹9375 (b) ₹375 (c) ₹2250 (d) ₹1875
33. 33.The simple interest on ₹10000 for 2 years is ₹1400. What is the rate per year? (a) 6% (b) 7% (c) 8% (d) 14%
34. 34.The simple interest on ₹3000 for 3 years is ₹540. What is the rate per year? (a) 5% (b) 7% (c) 18% (d) 6%
35. 35.In how many years will ₹2000 earn ₹320 simple interest at 8% per year? (a) 2 years (b) 4 years (c) 1 year (d) 3 years
36. 36.The simple interest on ₹5000 for 2 years is ₹700. What is the rate per year? (a) 8% (b) 14% (c) 7% (d) 6%
37. 37.In how many years will ₹8000 earn ₹1280 simple interest at 4% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
38. 38.The simple interest on ₹7000 for 4 years is ₹560. What is the rate per year? (a) 3% (b) 1% (c) 2% (d) 8%
39. 39.In how many years will ₹9000 earn ₹3240 simple interest at 9% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
40. 40.What is the simple interest on ₹4500 at 6% per year for 2 years? (a) ₹540 (b) ₹810 (c) ₹270 (d) ₹5040

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