ABC26GN1202 · Simplification

Subject: General Aptitude · Chapter: Simplification · Exam: 2002 · Marks: · Difficulty:

$\frac{(469+174)^{2}-(469-174)^{2}}{469 \times 174}=$ ?
(a)2
(b)4
(c)295
(d)643
Answer
Answer (as printed): B
Explanation
$$\begin{aligned} \text { Given exp. } & =\frac{(a+b)^{2}-(a-b)^{2}}{a b}=\frac{4 a b}{a b} \\ & =4(\text { where } a=469, b=174) . \end{aligned}$$

Explanation as extracted from the printed page; notation may be imperfect.

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