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26 January, 18:01

The perimeter of a rectangular pig pen of 136 meters. If the length is 5 meters more than twice the width, what is the length and width of the pig pen?

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  1. 26 January, 18:15
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    Length (L) : 2w + 5

    width (w) : w

    Perimeter (P) = 2L + 2w

    136 = 2 (2w + 5) + 2 (w)

    136 = 4w + 10 + 2w

    136 = 6w + 10

    126 = 6w

    21 = w

    Length (L) : 2w + 5 = 2 (21) + 5 = 42 + 5 = 47

    Answer: width = 21 meters, length = 47 meters
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