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Let a set be A={1, 2, 3} then the number of subsets containing two elements will be _________

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Let a set be A={1, 2, 3} then the number of subsets containing two elements will be _________

(a) 4

(b) 3

(c) 5

(d) 8

The question was posed to me during an interview.

The query is from Subsets topic in chapter Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics

1 Answer

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Best answer
Right answer is (b) 3

The best I can explain: The subsets will be {1, 2}, {2, 3}, {1, 3}.

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