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WAEC Mathematics 2014 Objective — Question 37

Question 37 of 50 from the West African Examinations Council (WAEC) Mathematics 2014 Objective paper, with the correct answer and a full explanation.

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Subtract ½(a−b−c) from the sum of ⅓(a−b+c) and ½(a+b−c).

  • A. ½(a+b+c)Correct
  • B. ½(a−b+c)
  • C. ½(a−b+c)
  • D. ½(a+b−c)

Explanation

Summing ½(a−b+c) and ½(a+b−c) gives 'a'. Subtracting ½(a−b−c) from a gives ½(a+b+c).

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