If x - y = * = , the numerical valu...
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If x - y = * = , the numerical value of xy is: +0 WAIW -1+

JEE/Engineering Exams
Maths
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( x-y=frac{x+y}{7}=frac{x y}{4}=k(6 t) ) then ( x-y=k-0 ) and ( x+g=7 k-(2) ) ( left.frac{2 x}{[x=4 k}right] ) ( x+y=7 k ) ( y=7 x-x=7 k-4 k ) ( y=3 k ) we know that, ( x y=k ) ( begin{array}{rl}x y & =4 k 4 k & x 3 k=4 k 3 k & =1 k & =frac{1}{3}end{array} ) ( therefore x y=4 k=4 x frac{1}{3}=frac{4}{3} ) petion ( (A) )
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