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Question

Jaspreet deposited a sum of ₹12,800 at 5% rate of interest per annum, compounded annually. The total amount (in ₹) received by Jaspreet after 2 years will be:

This question was previously asked in
RRB NTPC 2024 Undergraduate CBT 1 Question Paper (29-Aug-2025) (Shift 1)
The correct answer is

14,112

We need to calculate the total amount Jaspreet will receive after 2 years when the interest is compounded annually at a rate of 5% per annum.

The formula for compound interest is:

A = P (1 + r/n)^(nt)

where:

  • A is the amount of money accumulated after n years, including interest.
  • P is the principal amount (the initial sum of money).
  • r is the annual interest rate (decimal).
  • n is the number of times that interest is compounded per year.
  • t is the time the money is invested or borrowed for, in years.

Given:

  • P = ₹12,800
  • r = 5/100 = 0.05
  • n = 1 (compounded annually)
  • t = 2 years

Substituting the given values into the formula:

A = 12800 (1 + 0.05/1)^(1*2)

A = 12800 (1 + 0.05)^2

A = 12800 (1.05)^2

Calculate (1.05)^2:

(1.05)^2 = 1.1025

Now substitute back:

A = 12800 * 1.1025

A = ₹14,112

Thus, the correct answer is: 14,112

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Similar Questions

  1. In what time will ₹ 4400 become ₹ 4576 at 8% per annum interest compounded half – yearly?

Important Questions from Compound Interest

  1. The certain sum amounts to Rs. 9,982.50 in \(2\frac{1}{2}\)  years at 12% p.a., interest compounded 10-monthly. The sum (in Rs.) is:

  2. The difference between the simple interest and the compound interest compounded annually on a certain sum of money for 2 years at a rate of 8% per annum is Rs. 16.80. Find the principle amount. 

  3. If a sum of ₹ 2000 is lent at 10% p.a. compound interest, what is the interest for the second year?

  4. A sum becomes 5 times of itself in 3 years. at compound interest (interest is compounded annually). In how many years. will the sum becomes 125 times of itself?

  5. If the compound interest on a certain sum of money for two years at 9% p.a. is Rs. 3,762, then the sum is:

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