find the average speed?

mary took 30 minutes to cycle from her house to the cinema if she cycled the first 3 km of the journey at a speed of 150  m/min find her average speed for the remaning 3 km of the journey

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1 Answer

3000:150=20 min

30-20=10 min

3000:10=300 m/min
by Level 8 User (35.3k points)

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