2022 AMC 10 A

Complete problem set with solutions and individual problem pages

Problem 2 Easy

Mike cycled 15 laps in 57 minutes. Assume he cycled at a constant speed throughout. Approximately how many laps did he complete in the first 27 minutes?

  • A.

    5

  • B.

    7

  • C.

    9

  • D.

    11

  • E.

    13

Answer:B

Assume the number of laps is x.

\frac{15}{57}=\frac{x}{27}

x=\frac{15 \times 27}{57} \approx 7.

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