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11 April, 21:52

How many tiles are on the 4th layer?

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Answers (2)
  1. 11 April, 21:55
    0
    100% of 10 is 10 meaning each layer increases 19 more than previous value.

    1st layer=10

    2nd layer = 20

    3rd layer = 30

    4th layer = 40

    The forth layer contain 40 tiles
  2. 11 April, 22:15
    0
    80

    Step-by-step explanation:

    if you take 10 + 100% of that then its 20 and 100% of that is 20 so now its 40 + 100% now its 80

    1 layer 10

    2 layer 20

    3 layer 40

    4 layer 80
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