If "x"/"y"=4/5, then the value of (4/7+(2"y"-"x")/(2"y"+"x")) is - Mathematics

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MCQ

If `"x"/"y"=4/5`, then the value of `(4/7+(2"y"-"x")/(2"y"+"x"))` is

Options

  • `3/7`

  • 2

  • 1

  • `8/7`

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Solution

1

Explanation:

Given `"x"/"y"=4/5`

`4/7+(2"y"-"x")/(2"y"+"x")`

`⇒4/7+(2-"x"/"y")/(2+"x"/"y")`

`=4/7+(2-4/5)/(2+4/5)`

`=4/7+6/14`

= 1

Concept: Number System (Entrance Exam)
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