Question

Let A = {x : x is a multiple of 2 and x < 10,
X € N}. Then the number of elements in the
power set P (A) is
(A) 20
(B) 32
(C) 31
(D) 16​

Answer 1

Answer:

Option (D) 16

Step-by-step explanation:

A = {2,4,6,8}

No.of subsets of a given set = 2 power n [n is the number of elements in the set]

2 power n = 2⁴ = 16

{2},{4},{6},{8},{2,4}{2,6},{2,8},{4,6},{4,8},{6,8},{2,4,6},{2,4,8},{4,6,8},{2,6,8},{2,4,6,8},{ }