A few days ago
DO

How to work out average speed?

Hilary cycles to work each day. she cycles the first 5 miles at average speed of 15mph and the last mile in 10mins

How long does it take here to get to work?

What is her average speed for the whole journey?

Top 1 Answers
A few days ago
Mike Joy

Favorite Answer

First 5 MILES

At 15 mph it takes her 5 divide by 15 hours = 1/3 hour = 20 minutes to cycle 5 miles.

Total time taken = 20 + 10 (given for last mile) = 30 min.

TOTAL DISTANCE = 6 miles

CYCLED IN

30min

THEREFORE ave speed = 6 divide by 30/60 hours = 6 divide by 1/2 = 12mph

HOPE THIS helps. For explanation, please IM.

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