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.In how many years will ₹2500 earn ₹675 simple interest at 9% per year? (a) 3 years (b) 6 years (c) 4 years (d) 2 years
- 2.What is the simple interest on ₹5500 at 7% per year for 2 years? (a) ₹770 (b) ₹6270 (c) ₹385 (d) ₹1155
- 3.The simple interest on ₹4500 for 4 years is ₹360. What is the rate per year? (a) 3% (b) 8% (c) 1% (d) 2%
- 4.₹6500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹7215 (b) ₹8645 (c) ₹7930 (d) ₹1430
- 5.₹6500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹8450 (b) ₹8125 (c) ₹6825 (d) ₹1625
- 6.What is the simple interest on ₹8000 at 5% per year for 2 years? (a) ₹1200 (b) ₹8800 (c) ₹400 (d) ₹800
- 7.The simple interest on ₹5000 for 5 years is ₹1000. What is the rate per year? (a) 20% (b) 3% (c) 5% (d) 4%
- 8.The simple interest on ₹4500 for 4 years is ₹1440. What is the rate per year? (a) 8% (b) 9% (c) 32% (d) 7%
- 9.What is the simple interest on ₹6500 at 12% per year for 4 years? (a) ₹3900 (b) ₹780 (c) ₹3120 (d) ₹9620
- 10.The simple interest on ₹5000 for 2 years is ₹1100. What is the rate per year? (a) 22% (b) 12% (c) 10% (d) 11%
- 11.The simple interest on ₹1000 for 2 years is ₹160. What is the rate per year? (a) 7% (b) 16% (c) 9% (d) 8%
- 12.What is the simple interest on ₹8000 at 3% per year for 5 years? (a) ₹9200 (b) ₹1200 (c) ₹240 (d) ₹1440
- 13.What is the simple interest on ₹7500 at 2% per year for 3 years? (a) ₹7950 (b) ₹600 (c) ₹150 (d) ₹450
- 14.₹8000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹10880 (b) ₹8720 (c) ₹10160 (d) ₹2160
- 15.₹3000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹3330 (b) ₹660 (c) ₹3660 (d) ₹3990
- 16.The simple interest on ₹4000 for 2 years is ₹800. What is the rate per year? (a) 20% (b) 11% (c) 10% (d) 9%
- 17.₹3500 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹3885 (b) ₹5810 (c) ₹1925 (d) ₹5425
- 18.What is the simple interest on ₹2000 at 2% per year for 2 years? (a) ₹40 (b) ₹120 (c) ₹80 (d) ₹2080
- 19.In how many years will ₹8000 earn ₹960 simple interest at 4% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
- 20.In how many years will ₹5000 earn ₹2000 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 5 years (d) 8 years
- 21.₹1000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹1080 (b) ₹1160 (c) ₹1240 (d) ₹160
- 22.₹3500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹3920 (b) ₹3780 (c) ₹280 (d) ₹3640
- 23.What is the simple interest on ₹9000 at 8% per year for 4 years? (a) ₹11880 (b) ₹3600 (c) ₹720 (d) ₹2880
- 24.The simple interest on ₹3000 for 2 years is ₹180. What is the rate per year? (a) 2% (b) 4% (c) 3% (d) 6%
- 25.₹3500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹3570 (b) ₹140 (c) ₹3710 (d) ₹3640
- 26.₹6500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹6760 (b) ₹6630 (c) ₹260 (d) ₹6890
- 27.₹6500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹8840 (b) ₹2340 (c) ₹7280 (d) ₹9620
- 28.What is the simple interest on ₹3500 at 10% per year for 2 years? (a) ₹4200 (b) ₹350 (c) ₹700 (d) ₹1050
- 29.What is the simple interest on ₹2000 at 12% per year for 5 years? (a) ₹1440 (b) ₹1200 (c) ₹240 (d) ₹3200
- 30.What is the simple interest on ₹6500 at 3% per year for 3 years? (a) ₹780 (b) ₹585 (c) ₹195 (d) ₹7085
- 31.₹7000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹8400 (b) ₹1050 (c) ₹8050 (d) ₹7350
- 32.₹5000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹800 (b) ₹6200 (c) ₹5400 (d) ₹5800
- 33.What is the simple interest on ₹6000 at 9% per year for 3 years? (a) ₹1620 (b) ₹2160 (c) ₹7620 (d) ₹540
- 34.What is the simple interest on ₹7000 at 9% per year for 2 years? (a) ₹8260 (b) ₹630 (c) ₹1890 (d) ₹1260
- 35.₹4500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹6120 (b) ₹5040 (c) ₹5580 (d) ₹1080
- 36.In how many years will ₹9000 earn ₹3600 simple interest at 10% per year? (a) 5 years (b) 4 years (c) 3 years (d) 8 years
- 37.What is the simple interest on ₹1000 at 7% per year for 4 years? (a) ₹350 (b) ₹280 (c) ₹70 (d) ₹1280
- 38.₹2500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹3125 (b) ₹3000 (c) ₹500 (d) ₹2625
- 39.The simple interest on ₹6500 for 2 years is ₹390. What is the rate per year? (a) 6% (b) 2% (c) 4% (d) 3%
- 40.₹1500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹90 (b) ₹1590 (c) ₹1620 (d) ₹1530
Answer key
- 3 years
- ₹770
- 2%
- ₹7930
- ₹8125
- ₹800
- 4%
- 8%
- ₹3120
- 11%
- 8%
- ₹1200
- ₹450
- ₹10160
- ₹3660
- 10%
- ₹5425
- ₹80
- 3 years
- 4 years
- ₹1160
- ₹3780
- ₹2880
- 3%
- ₹3640
- ₹6760
- ₹8840
- ₹700
- ₹1200
- ₹585
- ₹8050
- ₹5800
- ₹1620
- ₹1260
- ₹5580
- 4 years
- ₹280
- ₹3000
- 3%
- ₹1590
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