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17 August, 21:31

On marys walk, she covered the 3 mile distance in one hour. However, the return trip took an hour and a half. What was her average speed?

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Answers (2)
  1. 17 August, 21:56
    0
    2.4 mph
  2. 17 August, 22:51
    0
    Step-by-step explanation:

    Speed = distance/time

    Speed = 3/1 = 3miles/hour

    Return trip

    Speed=3miles/1.5hour=2miles/hour

    Average speed = initial + final trip = 2miles/hour+3miles/hour, then divide by 2

    = 5/2=2.5miles/hour
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