Question

If the length of a rectangle is increased by 8 m its area increases by 72 sq.m. the breadth of the rectangle is?

Answer 1

Hey mate ^_^

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Answer:
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Let the breadth be 'x' and the length be 'y'.

Since,

The length is increased by 8

So,

Length = $y + 8$

Now,

The area is increased by 72

So,

Area = $xy + 72$

Now,

Area = Length × Breadth

$x(y + 8) = xy + 72$

$xy + 8x = xy + 72$

$8x = 72$

$x = \frac{72}{8}$

$x = 9$

Therefore,

The breadth of the rectangle is 9m.

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