Ratios, Rates, Proportional Relationships, and Units

SAT Math· difficulty 3/5

A runner completes a 55 km race in 2525 minutes. What is the average speed in km/h?

  • A

    10

  • B

    12

    check_circle
  • C

    20

  • D

    15

Explanation

55 km in 2525 min =5cdot60/25=12= 5 \\cdot 60/25 = 12 km/h.

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