Question

A bag contains cards with numbers written on it from 1 - 80. A card is pulled out at random. Find the probability that the card shows a perfect square.

Answer 1

S = {1,2 ............... 80}

n(S) = 80

A = {1, 4, 9, 16, 25, 36, 49, 64}

n(A) = 8