Simple Interest Worksheet for Maths Olympiad
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).
NameDateTime takenScore ___ / 40
- 1.What is the simple interest on ₹1000 at 3% per year for 5 years? (a) ₹30 (b) ₹1150 (c) ₹180 (d) ₹150
- 2.₹8000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹10000 (b) ₹8400 (c) ₹1600 (d) ₹9600
- 3.What is the simple interest on ₹8000 at 2% per year for 4 years? (a) ₹800 (b) ₹640 (c) ₹160 (d) ₹8640
- 4.The simple interest on ₹10000 for 5 years is ₹2000. What is the rate per year? (a) 3% (b) 20% (c) 5% (d) 4%
- 5.What is the simple interest on ₹8000 at 6% per year for 2 years? (a) ₹1440 (b) ₹960 (c) ₹480 (d) ₹8960
- 6.What is the simple interest on ₹8500 at 8% per year for 4 years? (a) ₹11220 (b) ₹2720 (c) ₹680 (d) ₹3400
- 7.What is the simple interest on ₹6500 at 12% per year for 5 years? (a) ₹780 (b) ₹3900 (c) ₹4680 (d) ₹10400
- 8.The simple interest on ₹2500 for 5 years is ₹250. What is the rate per year? (a) 3% (b) 10% (c) 2% (d) 1%
- 9.In how many years will ₹5500 earn ₹1375 simple interest at 5% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
- 10.₹4000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹4200 (b) ₹4800 (c) ₹600 (d) ₹4600
- 11.What is the simple interest on ₹3000 at 10% per year for 3 years? (a) ₹1200 (b) ₹900 (c) ₹300 (d) ₹3900
- 12.The simple interest on ₹1000 for 3 years is ₹180. What is the rate per year? (a) 5% (b) 7% (c) 18% (d) 6%
- 13.The simple interest on ₹7500 for 2 years is ₹1500. What is the rate per year? (a) 11% (b) 20% (c) 9% (d) 10%
- 14.₹1000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹1080 (b) ₹1240 (c) ₹160 (d) ₹1160
- 15.₹3500 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹5250 (b) ₹1750 (c) ₹3850 (d) ₹5600
- 16.What is the simple interest on ₹1500 at 4% per year for 4 years? (a) ₹1740 (b) ₹300 (c) ₹240 (d) ₹60
- 17.₹9500 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹10355 (b) ₹13775 (c) ₹14630 (d) ₹4275
- 18.In how many years will ₹5000 earn ₹300 simple interest at 3% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
- 19.What is the simple interest on ₹3000 at 6% per year for 4 years? (a) ₹3720 (b) ₹720 (c) ₹180 (d) ₹900
- 20.The simple interest on ₹9000 for 4 years is ₹1440. What is the rate per year? (a) 5% (b) 4% (c) 16% (d) 3%
- 21.What is the simple interest on ₹8500 at 3% per year for 4 years? (a) ₹255 (b) ₹1275 (c) ₹1020 (d) ₹9520
- 22.₹9500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹10260 (b) ₹1520 (c) ₹11020 (d) ₹11780
- 23.What is the simple interest on ₹2000 at 4% per year for 3 years? (a) ₹80 (b) ₹320 (c) ₹2240 (d) ₹240
- 24.₹4500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹1350 (b) ₹6120 (c) ₹5850 (d) ₹4770
- 25.What is the simple interest on ₹2500 at 10% per year for 2 years? (a) ₹750 (b) ₹250 (c) ₹500 (d) ₹3000
- 26.₹1000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹1210 (b) ₹1280 (c) ₹1070 (d) ₹210
- 27.The simple interest on ₹3000 for 5 years is ₹1500. What is the rate per year? (a) 10% (b) 11% (c) 50% (d) 9%
- 28.₹3500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹3920 (b) ₹3605 (c) ₹315 (d) ₹3815
- 29.In how many years will ₹4500 earn ₹1260 simple interest at 7% per year? (a) 5 years (b) 4 years (c) 3 years (d) 8 years
- 30.What is the simple interest on ₹1000 at 6% per year for 4 years? (a) ₹300 (b) ₹1240 (c) ₹60 (d) ₹240
- 31.In how many years will ₹8500 earn ₹2040 simple interest at 6% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
- 32.The simple interest on ₹6500 for 2 years is ₹780. What is the rate per year? (a) 12% (b) 5% (c) 7% (d) 6%
- 33.The simple interest on ₹6000 for 4 years is ₹1440. What is the rate per year? (a) 7% (b) 24% (c) 5% (d) 6%
- 34.In how many years will ₹5500 earn ₹440 simple interest at 4% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
- 35.What is the simple interest on ₹5500 at 10% per year for 2 years? (a) ₹1650 (b) ₹550 (c) ₹1100 (d) ₹6600
- 36.The simple interest on ₹1000 for 4 years is ₹320. What is the rate per year? (a) 9% (b) 32% (c) 7% (d) 8%
- 37.In how many years will ₹3500 earn ₹280 simple interest at 2% per year? (a) 5 years (b) 3 years (c) 4 years (d) 8 years
- 38.In how many years will ₹3000 earn ₹480 simple interest at 4% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
- 39.₹2500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹400 (b) ₹3000 (c) ₹2900 (d) ₹2600
- 40.In how many years will ₹1500 earn ₹495 simple interest at 11% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
Answer key
- ₹150
- ₹9600
- ₹640
- 4%
- ₹960
- ₹2720
- ₹3900
- 2%
- 5 years
- ₹4600
- ₹900
- 6%
- 10%
- ₹1160
- ₹5250
- ₹240
- ₹13775
- 2 years
- ₹720
- 4%
- ₹1020
- ₹11020
- ₹240
- ₹5850
- ₹500
- ₹1210
- 10%
- ₹3815
- 4 years
- ₹240
- 4 years
- 6%
- 6%
- 2 years
- ₹1100
- 8%
- 4 years
- 4 years
- ₹2900
- 3 years
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