Question

6.
If n(A) = 300, n(B) = 200 and n(AUB) = 400. Find n (A-B) and n
(B-A)​

Answer 1

Answer:

200 is correct answer bro for 1 st one.

100 for second one

Answer 2

Answer:

(A-B)means A intersection B nnnnn.......

n(a)=300..n(b)=200....n(aub)=400

formula..... n(aub)=n(a)+n(b)-n(a inter..b)

400=300+200- n(a inter..b)

400=500-n(a inter..b)

400-500=- n(a inter..b)

-100=- n(a inter..b)

100=n(a inter..b)