Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 868 · 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.₹3000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹360 (b) ₹3090 (c) ₹3450 (d) ₹3360
2. 2.In how many years will ₹6500 earn ₹2340 simple interest at 9% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
3. 3.In how many years will ₹7500 earn ₹675 simple interest at 3% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
4. 4.₹6000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹6840 (b) ₹840 (c) ₹7260 (d) ₹6420
5. 5.In how many years will ₹9500 earn ₹2850 simple interest at 10% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
6. 6.In how many years will ₹3500 earn ₹1925 simple interest at 11% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
7. 7.₹8500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹765 (b) ₹8755 (c) ₹9520 (d) ₹9265
8. 8.In how many years will ₹7000 earn ₹2310 simple interest at 11% per year? (a) 6 years (b) 3 years (c) 4 years (d) 2 years
9. 9.In how many years will ₹9000 earn ₹3240 simple interest at 9% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
10. 10.What is the simple interest on ₹6000 at 12% per year for 2 years? (a) ₹7440 (b) ₹720 (c) ₹2160 (d) ₹1440
11. 11.In how many years will ₹3500 earn ₹840 simple interest at 6% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
12. 12.In how many years will ₹8500 earn ₹765 simple interest at 3% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
13. 13.The simple interest on ₹3000 for 3 years is ₹900. What is the rate per year? (a) 9% (b) 10% (c) 30% (d) 11%
14. 14.The simple interest on ₹6000 for 5 years is ₹2700. What is the rate per year? (a) 8% (b) 9% (c) 10% (d) 45%
15. 15.₹3000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹4200 (b) ₹4500 (c) ₹1200 (d) ₹3300
16. 16.What is the simple interest on ₹7000 at 4% per year for 2 years? (a) ₹560 (b) ₹7560 (c) ₹280 (d) ₹840
17. 17.What is the simple interest on ₹1000 at 2% per year for 4 years? (a) ₹1080 (b) ₹100 (c) ₹80 (d) ₹20
18. 18.₹6500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹910 (b) ₹6955 (c) ₹7410 (d) ₹7865
19. 19.The simple interest on ₹1000 for 3 years is ₹270. What is the rate per year? (a) 8% (b) 10% (c) 9% (d) 27%
20. 20.The simple interest on ₹5000 for 2 years is ₹1000. What is the rate per year? (a) 20% (b) 10% (c) 11% (d) 9%
21. 21.The simple interest on ₹2500 for 3 years is ₹450. What is the rate per year? (a) 5% (b) 6% (c) 7% (d) 18%
22. 22.₹9000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹11250 (b) ₹1800 (c) ₹10800 (d) ₹9450
23. 23.In how many years will ₹9000 earn ₹2160 simple interest at 6% per year? (a) 4 years (b) 5 years (c) 3 years (d) 8 years
24. 24.The simple interest on ₹4000 for 2 years is ₹400. What is the rate per year? (a) 10% (b) 4% (c) 5% (d) 6%
25. 25.₹8000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹11200 (b) ₹12000 (c) ₹3200 (d) ₹8800
26. 26.₹6000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹1320 (b) ₹7980 (c) ₹7320 (d) ₹6660
27. 27.In how many years will ₹2500 earn ₹150 simple interest at 2% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
28. 28.The simple interest on ₹3000 for 2 years is ₹240. What is the rate per year? (a) 3% (b) 8% (c) 4% (d) 5%
29. 29.The simple interest on ₹8500 for 5 years is ₹1275. What is the rate per year? (a) 15% (b) 4% (c) 3% (d) 2%
30. 30.In how many years will ₹9500 earn ₹2280 simple interest at 6% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
31. 31.What is the simple interest on ₹8000 at 6% per year for 4 years? (a) ₹480 (b) ₹2400 (c) ₹9920 (d) ₹1920
32. 32.₹2000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹320 (b) ₹2320 (c) ₹2080 (d) ₹2400
33. 33.The simple interest on ₹7500 for 2 years is ₹1050. What is the rate per year? (a) 8% (b) 14% (c) 6% (d) 7%
34. 34.The simple interest on ₹6000 for 4 years is ₹480. What is the rate per year? (a) 2% (b) 1% (c) 3% (d) 8%
35. 35.In how many years will ₹2500 earn ₹250 simple interest at 2% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
36. 36.₹8000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹1600 (b) ₹8400 (c) ₹10000 (d) ₹9600
37. 37.₹4500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹4725 (b) ₹450 (c) ₹5175 (d) ₹4950
38. 38.₹4000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹4240 (b) ₹4160 (c) ₹4080 (d) ₹160
39. 39.What is the simple interest on ₹6000 at 3% per year for 5 years? (a) ₹180 (b) ₹1080 (c) ₹900 (d) ₹6900
40. 40.In how many years will ₹3000 earn ₹660 simple interest at 11% per year? (a) 2 years (b) 4 years (c) 3 years (d) 1 year

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