Math

The ski trip has to be cancelled. All 28 people must be told. In the first hour 2 people each call 2 people. The next hour each of the people called the hour before calls 2 people, and so on. How many hours will it take for all 28 people to be called?

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  1. 1 hour -- 4
    2 -- 8
    3 -- 16
    4 -- 32

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    Ms. Sue
  2. Not understanding I am getting 3hrs for 28 people

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  3. In the first hour, 2 * 2 = 4 people know.

    In the second hour, each of those 4 people call 2 others -- so now 8 people know.

    Etc.

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    Ms. Sue
  4. I see thank you!

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  5. You're welcome.

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    Ms. Sue

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