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2018 AMC 10A Problem 3

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2018 AMC 10A Problem 3AMC 10 Step by Step
Name:                             Date: September 13, 2026
Clocks, Calendars & Time · difficulty 1 of 5 · about 2 min · position P1-10

A unit of blood expires after 10!=10⋅9⋅8⋯110!=10\cdot 9 \cdot 8 \cdots 1 seconds. Yasin donates a unit of blood at noon of January 1. On what day does his unit of blood expire?

  1. A)

    January 2\text{January 2}

  2. B)

    January 12\text{January 12}

  3. C)

    January 22\text{January 22}

  4. D)

    February 11\text{February 11}

  5. E)

    February 12\text{February 12}

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