Question

If n(A)=25 n(B)=20 and n(AnB)=10 then AUB​

Answer 1

Answer:

Given

n(A)=25

n(B)=20

n(AnB)=10

Formula:

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

Working:

n(AuB)=25+20-10

          = 35

Answer 2

Answer:

35

Step-by-step explanation:

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

By formula

25+20-10 = 35