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Question

The compound interest on a sum of ₹7,500 for 2 years at 4 % p.a. is

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
₹612

Compound Interest Calculation Explained

This question requires calculating the compound interest (CI) on a given principal amount over a specific period and rate.

Given Values:

  • Principal (P) = ₹7,500
  • Rate (R) = 4% per annum
  • Time (T) = 2 years

Calculation Steps:

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 $

Final Answer:

The compound interest is ₹612.

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Similar Questions

  1. If the interest earned during the $2^{\text{nd}}$ year on a certain sum is ₹6,258, and the rate of interest is 20% per annum compounded annually, then the sum is:
  2. The difference between compound interest and simple interest, at the same rate, on an amount of ₹15,000 for 2 years is ₹24. What is the rate of interest per annum?
  3. There is 60% increase in an amount in 6 years at simple interest. What will be the compound interest of ₹10,000 after 3 years at the same rate?
  4. Simple interest on a sum of money, at $5\%$ per annum for 2 years, is ₹50. The compound interest on the same sum for the same period at the same interest rate is:
  5. Find the interest (in ₹) on ₹8,000 at 10% per annum compounded half yearly for $1\frac{1}{2}$ years.

  6. The difference between the compound interest and the simple interest accrued, at the same rate of interest, on an amount of ₹16,000 in 2 years was ₹1,000. What was the rate of interest percent per annum?
  7. Find the compound interest on ₹1,200 at 12% p.a. for 6 months compounded quarterly.
  8. A sum of money was lent on compound interest. It became ₹500 at the end of the first year and ₹550 at the end of second year. Find the rate of compound interest per annum.
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Important Questions from Simple and Compound Intrest

  1. The difference between the simple interest and the compound interest, compounded annually, on a certain sum of money for 2 years at 16% per annum is ₹797. Find the sum (rounded off to the nearest integer).
  2. The difference between the compound interest, compounded annually and the simple interest if ₹17,700 is deposited at 4% rate of interest per annum for 2 years is:
  3. The difference between the simple interest and the compound interest, compounded annually, on a certain sum of money for 2 years at 10% per annum is $₹407$. Find the sum [rounded off to the nearest integer].
  4. 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].

  5. When the difference between compound interest, compounded annually, and simple interest for three years is ₹217 at 10% interest per annum, the principal is ₹______.
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