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WAEC Mathematics 2013 Question 40

Question 40

Linear and Simultaneous Equations

When a number is subtracted from 2, the result equals 4 less than one-fifth of the number. Find the number.

  1. A.11
  2. B.15/2
  3. C.5
  4. D.5/2
Show the answer and explanation

Answer: C (5)

Explanation

2 − n = n/5 − 4, so 6 = 6n/5 and n = 5.