Practicing Success
The equations in terms of X and Y are : |
x-y=50, 2x-y=550 x-y=50, 2x+y=550 x + y = 50, 2x + y=550 x + y = 50, 2x - y=550 |
x-y=50, 2x+y=550 |
Let length = x let breadth = y from question $(x-50)(y+50)=xy$ so $xy-50x+50y-2500=xy$ $x-y=50$ ....(1) $(x-10)(y-20)=xy-5300$ $⇒xy-20x-10y+200=xy-5300$ $2x+y=550$ ...(2) eq. (2) + eq. (1) $⇒3x=600⇒x=200m$ so from (1) $y = 150m$
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