Math, asked by dinmalti, 1 year ago

If(3x-y):(x+5y)=5:7 find (x+y):(x-y)

Answers

Answered by Anonymous

3x-y/x+5y=5/7
7[3x-y]=5[x+5y]
21x-7y=5x+25y
21x-5x=25y+7y
16x=32y
x=2y
x/y =2
Applying componendo and dividendo
x+y/x-y=2+1/2-1
therefore, x+y:x-y=3:1

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