NCHMCT JEE 2015 Question Paper with solutions for online practice

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Question : 22 of 200

Marks: +1, -0

Simplify

(13-7×9-2)/(23×5-2×5-41×7)

$7/{18}$
$-2/7$
${49}/{162}$
$2/7$

Solution:

(13-7×9-2)/(23×5-2×5-41×7)

=

{13-63-2}/{115-10-287}

⇒

{13-65}/{115-297}

=

{-52}/{-182}

=

{26}/{91}

=

2/7

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