Question

$A=\{x:xϵNand3<x\le 6\}$ and $B=\{x:xϵWandx<4\}$. Find $B-A$

• A. $\{0,1,2,3\}$
• B. $\{4,5,6\}$
• C. $\{8,9,10\}$
• D. None of the above

Answer 1

The correct option is A $\{0,1,2,3\}$

As given $A=\{x:xϵNand3<x\le 6\}$ and $B=\{x:xϵWandx<4\}$

$⟹A=\{4,5,6\}$, $B=\{0,1,2,3,4\}$

$\therefore B-A=\{0,1,2,3\}$