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Question

The length of a rectangle is twice its breadth. If its area is 72 sq m, the breadth of the rectangle is :

A
12 m
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B
24 m
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C
6 m
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D
72 m
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Solution

The correct option is C 6 m
Let the breadth of the rectangle be b m.
GIven, the length is twice the breadth.
Hence, let the length of the rectangle be 2b m.

Area of rectangle = 2b×b
72=2b2
b2=36
b=6

The breadth of the rectangle is 6 m.

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