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Depositing 20 000 annually for 10 years at 8 per cent accumulates to about

  • A.134 200
  • B.431 800
  • C.289 700
  • D.200 000

Answer: C

Correct answer: 289 700

\[ F = 20\,000 \times \frac{(1.08)^{10} - 1}{0.08} = 20\,000 \times 14.487 \] \[ = 289\,700. \] The deposits total 200 000, so nearly 90 000 is interest - a much larger share than in the five-year case, because the earlier deposits have twice as long to compound.

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