Arithmetichard · Past Paper
The difference between compound interest and simple interest on a sum for 3 years at 10% per annum is Rs 31. Find the sum.
ARs 1000
BRs 1100
CRs 1200
DRs 1500
✓ Correct Answer: A — Rs 1000
Difference for 3 yrs = P(R/100)^2 * (3 + R/100). 31 = P(0.01)(3.1) => 31 = 0.031P => P = 1000.
Share this question
More from Arithmetic
- If 40% of a number is equal to two-third of another number, what is the ratio of first number to the second number?
- Find the fourth proportional to 2, 3, 4.
- If a shirt is bought for Rs. 400 and sold for Rs. 440, find profit %.
- What is the single discount equivalent to two successive discounts of 20% and 10%?
- A camera marked at Rs. 15,000 is available for Rs. 12,000. Find the discount percentage.