Sainik School Entrance Exam 2018 Solved Paper

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Question : 3 of 150

Marks: +1, -0

What should be added to

{-5}/{7}

to get

{-2}/{3}

?

$-29/21$
$29/21$
$1/21$
$-1/21$

Solution:

(c)

{-5}/{7}+n=-{2}/{3} ⇒n=-{2}/{3}+{5}/{7}

=

{-14+15}/{21}={1}/{21}

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