Question

Anil completes the 72km journey between Bristol and Cardiff in 48 minutes. He then drives 69km from Cardiff to Swansea at an average speed of 60km/h.
Work out nails average speed (in km/h) for his total journey from Bristol to Swansea.

Answer 1

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➷ Work out the time for Cardiff to Swansea:

time = distance/speed

Substitute in the values:

time = 69/60

Solve:

time = 1.15 hours = 69 minutes

Add together the total time and distance:

72 + 69 = 141

48 + 69 = 117

speed = distance/time

speed = 141/1.95

speed = 72.3 km/h

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