5. If (5x + 3y): (5x – 3y) = 3:1, then x: y = ? Q
x : y = 5 : 3 then (8x-5y) : (8x+5y)=?
=( (8*5) - (5*3) ) : ( (8*5) + (5*3) )
= (40-15) : (40+15)
divided by 5 on both side below the value
=25 : 55
= 5 : 11
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