Simplification - Arithmetic Aptitude Questions and Answers

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

295

643

Answer : Option B

Explanation :

Given exp. = $\frac {(a+b)^2-(a-b)^2 } { ab }$

= $\frac { 4ab } {ab }$

=4 (where a = 469, b = 174.)

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