Question

The perimeter of a rectangular plot is 120 m. if the length of the plot is twice its width, the area of the plot.

Answer 1

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Solution !

let the breadth of the plot be x metres,

then it's length = 2x metres.

∴ Perimeter of the plot = 2 x + x + 2 x + x = 6x meters.

according to given, 6x = 120 => x = 20 => breath = 20 m, length = 40 m.

∴ Area of the plot = length × breadth

= ( 40 × 20) m²

= 800 m² .

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Answer 2

let the breadth of the plot be x metres,

then it's length = 2x metres.

∴ Perimeter of the plot = 2 x + x + 2 x + x = 6x meters.

according to given, 6x = 120 => x = 20 => breath = 20 m, length = 40 m.

∴ Area of the plot = length × breadth

= ( 40 × 20) m²

= 800 m² .