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WAEC Mathematics 2015 Question 31

Question 31

Linear and Simultaneous Equations

Tom will be 25 years old in n years' time. If he is 5 years younger than Bade, find Bade's present age.

  1. A.(30 − n) years
  2. B.(20 − n) years
  3. C.(25 − n) years
  4. D.(30 + n) years
Show the answer and explanation

Answer: A ((30 − n) years)

Explanation

Tom is now 25 − n, so Bade is 25 − n + 5 = (30 − n) years.