Question

2. If n(A) = 20 , n(B) = 28 and n(A U B) = 36, then n(A⋂B) = ?​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

12.

Step-by-step explanation:

n(AnB) = n(A) + n(B) - n(AUB)

n(AnB) = 20 + 28 - 36

n(AnB) = 48 - 36

n(AnB) = 12.