If x: y=3:2 and x+y=90. Then the value 7...

If x: y=3:2 and x+y=90. Then the value 7(x - y): (x + y) is:

A

`7 :5`

B

`7:6`

C

`7:9`

D

`2:3`

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The correct Answer is:

A

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