ECZ 2013 · O-Level Paper 1 — Social and Commercial Arithmetic

Kaponya got a simple interest of K375.00 from a bank after investing a sum of money for 18 months. Find the amount of money he invested, if the bank interest rate was 10% per annum.

  • A. K3 750.00
  • B. K250.00
  • C. K625.00
  • D. K2 500.00

Verified working — step 1

I = PRT100with T = 18 months = 1.5 years: 375 = P x 10 x 1.5100= 0.15P, so P = …

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Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.

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