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Class 8 Maths Practice Test: Comparing Quantities - Compound Interest
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Avg score: 25% • Most missed: “Find the amount on Rs. 5000 at the rate of 20% per annum for 18 months when inte…”
Compound interest is an interest calculated on the principal and the existing interest together over a given time period. The interest accumulated on a principal over a period of time is also added to the principal and becomes the new principal amount for the next time period. Again, the interest for the next time period is calculated on the accumulated principal value. Contrast with simple interest, where previously accumulated interest is not added to the principal amount of the current period, so there is no compounding. Compound Interest Formula: Compound Interest = Amount –... Show more
Class 8 Maths Practice Test: Comparing Quantities - Compound Interest
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10 Questions

1. Calculate the compound interest at the rate of 6% per annum for 2 years on the principle which in 2 years at the rate of 2% per annum gives Rs. 8000 as simple interest.
2. Vidhya lent Rs. 5000 to Kavya for 3 years at the rate of 5% per annum compound interest. Calculate the amount that Vidhya will get after 3 years.
3. Calculate the simple interest if the principal amount is 50000 and the rate is 2% for 4 years.
4. Evaluate the compound interest on Rs. 10101 for 3 years at the rate of 9% per annum compounded annually.
5. Compute the compound interest on Rs. 16000 for 2 years 10% per annum when compounded half yearly.
6. Find the amount on Rs. 5000 at the rate of 20% per annum for 18 months when interest is compounded half yearly.
7. Calculate the compound interest on Rs. 4000 for 2 years at 20% per annum when compounded annually.
8. If the amount is Rs. 400 and Principal is Rs. 100 which is compounded half yearly for 1 year, calculate the rate of interest.
9. Find the Compound Interest on Rs. 1000 for two years at 2% per annum.
10. A farmer gets a loan of Rs. 100000 against his fixed deposits. If the rate of interest is 1.5 paise per rupee per annum, calculate the compound interest payable after 2 years.

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