CBSE Class 10 Answered
linear equation of class-x
Asked by crama1965 | 25 May, 2010, 05:01: PM
Expert Answer
Let A, X and Y be the area, length and bredth of the rectangle.
A = XY ... (1)
and P = Perimeter = 2(X+Y) = 32.
2X + 2Y = 32 ... (2)
Now, if we do X + 2 and Y - 1,
A = (X + 2)( Y - 1) = XY + 2Y - X - 2
A = A + 2Y - X - 2 ... using (1)
X - 2Y = -2 ... (3),
Add (2) and (3),
we get,
3X = 30
X = 10 m and hence Y = 16 - 10 = 6 m.
Hence the dimensions of the plot are 10 m x 6 m.
Regards,
Team,
TopperLearning.
Answered by | 25 May, 2010, 05:56: PM
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