If x:y=5:3, then (8x-5y):(8x+5y)=?

A    3:12

B    8:13

C    3:11

D    5:11

Solution

Correct Answer: Option D

 

let x=5 and y=3

Then,

(8x-5y):(8x+5y)

= (8*5-5*3):(8*5+5*3)

= (40-15):(40+15)

= 25:55

= 5:11

 

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