The speed of a train is five times as great as the speed of a scooter. The scooter takes 4 hours longer than the train to travel 400 km. If the speed of the sco

Question

The speed of a train is five times as great as the speed of a scooter. The scooter takes 4 hours longer than the train to travel 400 km.
If the speed of the scooter is given by x, which of the following equations correctly models the given scenario?

Answer 1

Train goes 5x

 

400 = (5x)t

 

400 = x(t+4)

 

5xt = xt + 4x

 

4xt = 4x

t=1

 

400 = x(5)

x=80

 

scooter 80 km per hour

train is 400 km per hour

 

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