Linear Equations in One Variable

SAT Math· difficulty 3/5

Two trains leave stations 300 miles apart at the same time, heading toward each other. One travels 60 mph, the other 40 mph. After how many hours do they meet?

  • A

    2

  • B

    4

  • C

    3

    check_circle
  • D

    5

Explanation

Combined rate =100= 100 mph. Time =300/100=3= 300/100 = 3 hours.

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