WAEC Mathematics 2024 Question 7

Question 7

Commercial Arithmetic

Find the time for which $1,250.00 will amount to $2,031.25 at 12.5% per annum simple interest.

  1. A.2 years
  2. B.3 years
  3. C.4 years
  4. D.5 years
Show the answer and explanation

Answer: D (5 years)

Explanation

Interest = 2031.25 − 1250 = 781.25. T = (100 × 781.25) ÷ (1250 × 12.5) = 5 years.