Question

if n(A) =15,n(B)=18 and n(AUB)=28;find n(AnB)​

Answer 1

Answer:

n(AnB) = 5

Step-by-step explanation:

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

15 + 18 - n(AnB) = 28

n(AnB) = 15 + 18 - 28

n(AnB) = 33 - 28

n(AnB) = 5