1) If $x \times y = x + y + \sqrt{xy}$, the value of $6 \times 24$ is : A) 42 B) 43 C) 24 D) 25 Answer: Option AExplanation:$6 \times 24 = 6 + 24 + \sqrt{6 \times 4}$ $= 30 + \sqrt{144} = 30 + 12 = 42.$