Question

 If A and B are two sets such that n(A)= 36, n(B)=20 and n(AUB)=50, then n(A⋂B) is ​

Answer 1

answer:

answer is 6

step by step explanation:

The basic formula of cardinal number is :

=> n(AUB) = n(A) + n(B) - n(A⋂B)

=>50= 36 + 20 - n(A⋂B)

=>50= 56 -n(A⋂B)

=>n(A⋂B) = 56-50

=>n(A⋂B) = 6