NCHMCT JEE 2016 Question Paper with solutions for online practice

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Question : 10 of 200

Marks: +1, -0

If 1.5x = 0.04y, then the value of

({y-x}/{y+x})

is ...

${730}/{77}$
${73}/{77}$
${7.3}/{77}$
None of these

Solution:

Since 1.5x = .04 y
⇒

{3x}/2

=

y/{25}

⇒ y =

{75x}/{2}

{y-x}/{y+x}

=

{{75x}/2-x}/{{75x}/2+x}

=

{75x-2x}/{75x+2x}

=

{73}/{77}

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