JAMB Mathematics 1982 Question 14

Question 14

Commercial Arithmetic

A man bought a wristwatch of ₦150 but was only able to sell it for ₦120. Find the loss per cent on the transaction.

  1. A.25%
  2. B.111/9%
  3. C.20%
  4. D.80%
  5. E.30%
Show the answer and explanation

Answer: C (20%)

Explanation

The loss is ₦30 on a cost of ₦150: 30/150 × 100 = 20%.