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WAEC Mathematics 2019 Question 9

Question 9

Progressions

If 6, P and 14 are consecutive terms in an Arithmetic Progression (A.P), find the value of P.

  1. A.9
  2. B.10
  3. C.6
  4. D.8
Show the answer and explanation

Answer: B (10)

Explanation

The middle term of an A.P. is the average of its neighbours: P = (6 + 14)/2 = 10.