Question

Which of the following is subset of set {1, 2, 3, 4}?

(a) {1, 2}

(b) {1, 2, 3}

(c) {1}

(d) All of the mentioned

I had been asked this question during a job interview.

Origin of the question is Types of Set topic in section Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics

Answer 1

Right option is (d) All of the mentioned

For explanation: There are total 16 subsets.