Question

Let P and Q be two sets such that n(P U Q) = 70, n(P) = 45 and n(Q) = 38. Draw a Venn diagram and

find: (i) n(P Ո Q) (ii) n(Q – P)​

Answer 1

Step-by-step explanation:

n(P) + n(Q) = 45 + 38 = 83

n( P U Q ) = 70

n( P Π Q ) = 83 - 70 = 13

Therefore , n( P Π Q ) = 13

n( Q - P ) = 38 - 45 = -7 which is not possible so it is 0

Therefore , n( Q - P ) = 0