SOLUTION: Matthew rode his bike 4km to school. He left home at 7:45am and arrived at school at 8:15am. How fast was he travelling?

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Question 318997: Matthew rode his bike 4km to school. He left home at 7:45am and arrived at school at 8:15am. How fast was he travelling?
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
he took 1/2 hour to reach school which is 4 km distance.
In 1 hour he will travel the double the distance= 8km.
Speed= 8km/hr.
..
if you use the formula
rate = distance / time
rate = 4 divided by 1/2
rate = 4*2 = 8 km/hr