Postal or Sorting Assistants Model Paper 9 With Solutions

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Question : 15 of 100

Marks: +1, -0

If 1.5 x= 0.04 y, then the value of

(y-x)/(y+x)

is:

$730/77$
$73/77$
$7.3/77$
$703/77$

Solution:

{y-x}/{y+x}={y/y-x/y}/{y/y+x/y}={1-x/y}/{1+x/y}

We have,

x/y={0.04}/{1.5}=2/75

{1-x/y}/{1+x/y}={1-2/75}/{1+2/75}=73/77

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