RRB NTPC Mains or Stage 2 Model Paper 5 with solutions

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Question : 38 of 120

Marks: +1, -0

If

x/ 2y=6/ 7

the value of

{x -y }/{x +y}+14 /19

is :

$13 /19$
$15 /19$
1
$1 1 /19$

Solution:

(c)

x/{2y}= 6 /7⇒x/y=[2× 6/7] =12/7

∴{x -y}/{x+ y }+14/19={12/7-1}/{12/7+1}+ 14 /19 =5/7/1 9/7+14/19

[5/ 7 ×7/19]+14/19= 5/19+14/ 19= 19/ 19=1

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