Question

Two finite sets have m and n elements. The total number of subsets of the first set is 56 more than the total number
of subsets of the second set. The values of m and n are
(a) m = 7, n = 6 (b) m = 6, n = 3
(c) m = 5, n = 1 (d) m = 8, n = 7

Answer 1

Two finite sets have m and n elements. If the total number of subsets of first set is 56 more than the total number of subsets of second set, then find the values of m and n. ⇒m=6.

option B is correct