If A = x z^+ : x < 10 and x is a multiple of 3 or 4 , where z^+ is the set of positive integers, then the total number of symmetric relations on A is

JEE Main 2012 Mathematics question

If and x is a multiple of 3 or 4, where is the set of positive integers, then the total number of symmetric relations on A is

Answer: (2)

A = {3, 4, 6, 8, 9}, n = 5. A symmetric relation is determined by choosing any subset of the

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Question ID VK-103517