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21 February, 21:12

Car travels for 15 mins at 48mph it then travels for 2 hours at 60mph it then travels for 45 mins at 40mph what is the car average speed for the whole journey

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  1. 21 February, 21:39
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    15+120+45 = 180 minutes

    (48*15) + (60*120) + (40*45) = x

    (720) + (7200) + (1800) = x

    9720=x miles

    Miles/minutes = average speed = Y

    9720/180 = Y

    54 = Y
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