Math

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If the ratio between the length and the perimeter of a rectangular plot is 1:3 then the ratio between the length and breadth of plot is?

  • Math -

    let the length be x
    let the breadth be y
    perimeter = 2x + 2y

    given : length : perimeter = x : 2x+2y = 1:3
    x/(2x+2y) = 1/3
    3x = 2x+2y
    x = 2y

    length : breadth = x : y
    = 2y:y
    = 2 : 1

  • Math -

    I don't understand.

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