The length of a rectangle is three times the breadth. If the minimum perimeter of the rectangle is 160 cm, then

Breadth 20 cm

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Length 20 cm

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Breadth x 20 cm

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Length 20 cm

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Solution

The correct option is C
Breadth x 20 cm

If x cm is the breadth, then according to the question

2 (3x + x) $\geq$ 160

x $\geq$ 20

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