If \( p^{th} \) term of an AP is k, then what is the sum of \( p^{th} \) term, \( (p + q)^{th} \) term and \( (p - q)^{th} \) term of the AP ?

  1. A. 2k
  2. B. 3k
  3. C. 4k
  4. D. 5k

Correct Answer: B. 3k

Explanation

The \( (p-q)^{th} \) and \( (p+q)^{th} \) terms are symmetric around the \( p^{th} \) term. Their sum is \( 2 \times k \). Adding the \( p^{th} \) term gives a total sum of \( 3k \).

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