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17 August, 04:36

Xenia is ordering a cake for her friend's wedding. She knows that there will be 110 guests at the wedding, and she is trying to decide how large a cake to order. She has been told that each guest should get a piece of cake that is 4 inches by 4 inches. She would like to buy a tiered, square three-layer cake and is trying to decide which sizes of cakes to order. Which combination of cakes should she get? The available sizes, in inches, are:

32 * 32

28 * 28

24 * 24

20 * 20

16 * 16

12 * 12

8 * 8

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Answers (2)
  1. 17 August, 05:27
    0
    110 * (4*4) = 1760 Thats the area of the cake required.

    32*32=1024

    28*28=784

    24*24=576

    20 * 20=400

    16 * 16=256

    12*12=144

    8 * 8 = 64

    784+576+400=1760. which means 28,24 and 20 inches cakes.
  2. 17 August, 07:01
    0
    She should get a 32 by 32
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