((469+174)²-(469-174)²)/(469 × 174)= ? · ABC26GN1202

Subject: General Aptitude · Chapter: Simplification · Exam: M.B.A. 2002

$\frac{(469+174)^{2}-(469-174)^{2}}{469 \times 174}=$ ?

(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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