Question

N is subset of W, Z and Q. (Assume conventional notations)

(a) True

(b) False

I have been asked this question during a job interview.

Origin of the question is Number Systems Basics in portion Number Systems of Mathematics – Class 9

Answer 1

The correct answer is (a) True

The explanation: N = {1, 2, 3….}

W = {0, 1, 2, 3….}

Z = {…-3, -2, -1, 0, 1, 2, 3….}

Q = p/q where p and q are integers and q ≠ 0

We can see that all the members of N are contained in W, Z and Q hence, it is true that N is subset of W, Z and Q.