Question

The intersection of the sets {1, 2, 5} and {1, 2, 6} is the set _____________

(a) {1, 2}

(b) {5, 6}

(c) {2, 5}

(d) {1, 6}

I got this question at a job interview.

Query is from Set Operations in chapter Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics

Answer 1

Correct answer is (a) {1, 2}

To explain: The intersection of the sets A and B, is the set containing those elements that are in both A and B.