The ratio between the length and breadth of a rectangular field is 5:4. If the b

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Question

The ratio between the length and breadth of a rectangular field is 5:4. If the breadth is 20 meters less than the length, the perimeters of the field is?

Options:

A . none of these

B . 280 m

C . 260 m

D . 360 m

Answer: Option D

Let length of rectangular field = 5y,so width = 4y.From question5y - 4y = 20m? x = 20m ? Length = (5 x 20)m = 100 mBreadth = (4 x 20) m = 80 m ? Perimeter = 2 (100 + 80 ) m = 360 m

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