Question

Let A = {a, b, c}, B = {b, c, d}, C = {a, b, d, e}, then A ∩ (B ∪ C) is

• A. {a, b, c}
• B. {b, c, d}
• C. {a, b, d, e}
• D. {e}

Answer 1

Answer: (A)

{a, b, c}

Answer 2

$B \cup C = \{ a , b , c , d , e \}$

∴$A \cap ( B \cup C ) = \{ a , b , c \} \cap \{ a , b , c , d , e \}$ $= \{ a , b , c \}$.