Simple Interest Worksheet for Kids

Money maths lesson 23: Simple interest · Set 81 · 40 sums

The method (P × R × T ÷ 100): Interest I = P × R × T ÷ 100. Amount after T years = P + I. Turn it round: R = I × 100 ÷ (P × T) and T = I × 100 ÷ (P × R).

1. 1.₹1100 earns 10% simple interest per year. In how many years will the interest be ₹110?
2. 2.Lakshmi keeps ₹1600 in a bank. After 4 years the simple interest is ₹256. What is the rate of interest per year (in %)?
3. 3.₹200 earns 2% simple interest per year. In how many years will the interest be ₹4?
4. 4.Meera keeps ₹2000 in a bank at 2% simple interest per year. How much money will there be after 4 years (in ₹)?
5. 5.Aditya keeps ₹100 in a bank. After 1 year the simple interest is ₹2. What is the rate of interest per year (in %)?
6. 6.Priya keeps ₹300 in a bank. After 3 years the simple interest is ₹81. What is the rate of interest per year (in %)?
7. 7.Manav has ₹800. In a piggy bank it stays ₹800. In a bank at 10% simple interest per year, how many rupees more will Manav have after 5 years?
8. 8.Ananya keeps ₹1900 in a bank at 3% simple interest per year. How much money will there be after 4 years (in ₹)?
9. 9.Joseph has ₹700. In a piggy bank it stays ₹700. In a bank at 5% simple interest per year, how many rupees more will Joseph have after 3 years?
10. 10.Aditya keeps ₹700 in a bank at 6% simple interest per year. How much money will there be after 1 year (in ₹)?
11. 11.₹1600 earns 2% simple interest per year. In how many years will the interest be ₹128?
12. 12.Farhan keeps ₹300 in a bank. After 1 year the simple interest is ₹6. What is the rate of interest per year (in %)?
13. 13.Dev keeps ₹700 in a bank at 5% simple interest per year. How much money will there be after 1 year (in ₹)?
14. 14.₹200 earns 6% simple interest per year. In how many years will the interest be ₹12?
15. 15.Aarav keeps ₹100 in a bank. After 3 years the simple interest is ₹15. What is the rate of interest per year (in %)?
16. 16.Lakshmi has ₹1900. In a piggy bank it stays ₹1900. In a bank at 5% simple interest per year, how many rupees more will Lakshmi have after 4 years?
17. 17.Kabir keeps ₹1800 in a bank at 3% simple interest per year. How much money will there be after 2 years (in ₹)?
18. 18.Tara has ₹100. In a piggy bank it stays ₹100. In a bank at 4% simple interest per year, how many rupees more will Tara have after 2 years?
19. 19.₹900 earns 10% simple interest per year. In how many years will the interest be ₹360?
20. 20.Meera has ₹600. In a piggy bank it stays ₹600. In a bank at 2% simple interest per year, how many rupees more will Meera have after 1 year?
21. 21.Dev keeps ₹400 in a bank. After 3 years the simple interest is ₹60. What is the rate of interest per year (in %)?
22. 22.₹1200 earns 10% simple interest per year. In how many years will the interest be ₹360?
23. 23.Manav keeps ₹1600 in a bank at 10% simple interest per year. How many rupees of interest does it earn in 2 years?
24. 24.Aditya keeps ₹200 in a bank at 6% simple interest per year. How many rupees of interest does it earn in 4 years?
25. 25.Sneha has ₹500. In a piggy bank it stays ₹500. In a bank at 5% simple interest per year, how many rupees more will Sneha have after 3 years?
26. 26.Ananya has ₹800. In a piggy bank it stays ₹800. In a bank at 9% simple interest per year, how many rupees more will Ananya have after 3 years?
27. 27.Kabir keeps ₹1400 in a bank at 2% simple interest per year. How many rupees of interest does it earn in 5 years?
28. 28.Lakshmi keeps ₹1700 in a bank at 9% simple interest per year. How much money will there be after 1 year (in ₹)?
29. 29.Nisha keeps ₹1700 in a bank at 4% simple interest per year. How many rupees of interest does it earn in 1 year?
30. 30.Sneha keeps ₹400 in a bank. After 1 year the simple interest is ₹20. What is the rate of interest per year (in %)?
31. 31.₹900 earns 8% simple interest per year. In how many years will the interest be ₹144?
32. 32.Karan keeps ₹600 in a bank. After 1 year the simple interest is ₹36. What is the rate of interest per year (in %)?
33. 33.Gurpreet keeps ₹1400 in a bank at 2% simple interest per year. How much money will there be after 3 years (in ₹)?
34. 34.₹100 earns 8% simple interest per year. In how many years will the interest be ₹8?
35. 35.Isha keeps ₹1200 in a bank. After 2 years the simple interest is ₹96. What is the rate of interest per year (in %)?
36. 36.₹1300 earns 10% simple interest per year. In how many years will the interest be ₹520?
37. 37.Tara keeps ₹1100 in a bank. After 3 years the simple interest is ₹66. What is the rate of interest per year (in %)?
38. 38.Joseph keeps ₹600 in a bank at 7% simple interest per year. How much money will there be after 3 years (in ₹)?
39. 39.Tara keeps ₹300 in a bank. After 2 years the simple interest is ₹42. What is the rate of interest per year (in %)?
40. 40.Rohan keeps ₹1200 in a bank. After 1 year the simple interest is ₹72. What is the rate of interest per year (in %)?

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