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A girl cycles 18 kilometers in 1 hour and 30 minutes. What is her average speed?
in Grade 7 Maths by Diamond (40.2k points) | 28 views

1 Answer

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speed = distance/time

          = 18/1.5 hours  , change 1 hour 30 min to 1.5 hours (30 min= 1/2 of an hour)

        = 12 km/hour
by Silver Status (31.3k points)
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