airron
@airron
·
BEHSKan MS
)=28, and n (A∩B) =9 , n(A\B)=7. then n(B\A)=………. A. 12 B. 16 C. 21 D. 19 E. 5 27. If A={1,3,5,7,9} and B´={1,2,3,4,5} , then A\B=…… A.{7,9} B.{2,4} C.{1,3,5} D. {1,2,3,4,5,7,9} E. None of these 28.I…