Wepukhulu borrowed sh.180000 from a bank that charge compound interest at a rate of 10% p.a calculate the amount he paid back after 3 years

Mathematics

ScanSolve AI Answer

Answer

The amount Wepukhulu paid back after 3 years is Sh. 239,580.

Step-by-step solution

3 steps

Here's how to calculate it:

Formula for Compound Interest:
A = P * (1 + r)^n

Where:

  • A = Amount after n years
  • P = Principal amount (initial loan)
  • r = Annual interest rate (as a decimal)
  • n = Number of years

Given values:

  • P = Sh. 180,000
  • r = 10% = 0.10
  • n = 3 years

Calculation:

  1. Year 1

    A = 180,000 * (1 + 0.10)^1
    A = 180,000 * 1.10
    A = Sh. 198,000

  2. Year 2

    A = 198,000 * (1 + 0.10)^1
    A = 198,000 * 1.10
    A = Sh. 217,800

  3. Year 3

    A = 217,800 * (1 + 0.10)^1
    A = 217,800 * 1.10
    A = Sh. 239,580

    Alternatively, using the direct formula:
    A = 180,000 * (1 + 0.10)^3
    A = 180,000 * (1.10)^3
    A = 180,000 * 1.331
    A = Sh. 239,580

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