Math

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Rectangular cake pans X and Y are
similar. The ratio of the width of
pan X to the width of pan Y is 3 : 4.
The length of pan X is 10 inches, and
its width is 5 inches. What is the
perimeter of pan Y ?

  • Math -

    X is 5 by 10
    Y:x = 4/3, so
    Y is 20/3 by 40/3
    and its perimeter is thus 40

    or

    X is 5 by 10,
    so its perimeter is 30
    Y:X = 4:3, so its perimeter is 40

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