Question

2. If A⊂B,n(A)=6,n(B)=10A⊂B,n(A)=6,n(B)=10 then the value of n(B−A)n(B−A) is a) 2 b) 4 c)6 d) 8

Answer 1

4

b-a= 10-6

=4

and 4x4=16

√16=4