What will be the amount after the period of 2 years at the compound interest rate of 10% per year at 17200 rupees? (In rupees)

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RPF Constable (2018) Official Paper (Held On: 03 Feb, 2019 Shift 2)
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  1. 22,812
  2. 23,812
  3. 20,812
  4. 21,812

Answer (Detailed Solution Below)

Option 3 : 20,812
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Detailed Solution

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Given:

The principal amount (P) = 17200 rupees

The time period (t) = 2 years

The compound interest rate (R) = 10% per year

Formula used:

The formula for compound interest is given by:

A = P ×  (1 + (R / 100))t

Where "A" is the amount after the time period "t" at an interest rate "R", and "P" is the principal amount.

Solution:

We can use the formula for compound interest to find the amount after 2 years at a 10% interest rate:

A = P × (1 + (R / 100))t

A = 17200 × (1 + (10 / 100))2

A = 17200 × (1 + 0.1)2

A = 17200 × 1.12

A = 17200 × 1.21

A = 20,812 rupees

Therefore, the amount after 2 years at a 10% compound interest rate of 17200 rupees is 20,812 rupees.

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