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Question

In a rectangle, if the length is increased by 3 meters and breadth is decreased by 4 meters, the area of the rectangle is reduced by 67 square meters. If length is reduced by 1 meter and breadth is increased by 4 meters, the area is increased by 89 Sq. meters. Find the dimensions of the rectangle.

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Solution

Let the length and breadth of the rectangle be and units respectively

Then, area of rectangle = square units

If the length is increased by meters and breath is reduced each by square meters the area is reduced by square units

Therefore,

Then the length is reduced by meter and breadth is increased by meter then the area is increased by square units

Therefore,

Thus, we get the following system of linear equation

By using cross multiplication we have

and

Hence, the length of rectangle ismeter,

The breath of rectangle is meter.


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