Question

if50% of(x-y)=30%of(x+y),then what percent of X is Y.

Answer 1

50% of (x-y) =30 % of (x+y)

50(x-y) = 30(x+y)

50x- 50y = 30x+ 30y

20x=80y

y÷x= 20÷80

% of x is y=(20*100)/80

=25%.

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Answer 2

50/100 *( x-y)=30/100*(x+y)
1/2(x-y)=3/10(x+y)
1/2x-1/2y=3/10x+3/10y
1/2x-3/10x=3/10y+1/2y
1/5x=4/5y
Y=1/5*5/4x=1/4x=0.25x=25% of x