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JAMB Mathematics 2009 Question 6

Question 6

Fractions, Decimals and Approximation

A student spent 1/5 of his allowances on books, 1/3 of the remainder on food and kept the rest for contingencies. What fraction was kept?

  1. A.7/15
  2. B.8/15
  3. C.2/3
  4. D.4/5
Show the answer and explanation

Answer: B (8/15)

Explanation

After books, 4/5 is left. Food takes 1/3 × 4/5 = 4/15. He keeps 1 − 1/5 − 4/15 = 8/15.