It is observed that \(1 + 3 = 2^2, 1 + 3 + 5 =

MATHEMATICS
WAEC 1997

It is observed that \(1 + 3 = 2^2, 1 + 3 + 5 = 3^2, 1 + 3 + 5 + 7 = 4^2. \\If \hspace{1mm}1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 = P^2 find\hspace{1mm}P\)

  • A. 6
  • B. 7
  • C. 8
  • D. 9

Correct Answer: C. 8

Explanation

1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 = 64

where 64 = 8^2

That is P is 8



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