In an arithmetic progression, the p^{th} term is 1/q and the q^{th} term is 1/p. Find the sum of the first ‘pq’ terms of the progression.

Options:

Answer: Option A : C Solution:OPTION (c) Using Assumption Let p = 1 and q= 2 Then as stated 1^{st} term is ½ and 2^{nd} term is 1. So we have an AP with common difference ½. So the AP is: ½, 1, 3/2, 2, 5/2…. Now sum of first pq terms : sum of first two terms = ½ + 1 = 3/2 Put p = 1 and q = 2 in the options: Correct option is (c)

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