This question requires calculating the compound interest (CI) on a given principal amount over a specific period and rate.
The formula to calculate the total amount (A) after compound interest is applied is:
$ A = P \left( 1 + \frac{R}{100} \right)^T $
Substitute the given values:
$ A = 7500 \left( 1 + \frac{4}{100} \right)^2 $
$ A = 7500 \left( 1 + 0.04 \right)^2 $
$ A = 7500 \left( 1.04 \right)^2 $
$ A = 7500 \times 1.0816 $
$ A = 8112 $
The compound interest (CI) is the difference between the final amount (A) and the principal (P):
$ CI = A - P $
$ CI = 8112 - 7500 $
$ CI = 612 $
The compound interest is ₹612.
Find the interest (in ₹) on ₹8,000 at 10% per annum compounded half yearly for $1\frac{1}{2}$ years.
The difference between the simple interest and the compound interest, compounded annually, on a certain sum of money for 2 years at 17% per annum is ₹967. Find the sum [rounded off to the nearest integer].