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It takes Engineer Kweku three hours to drive to his brother’s house at an average speed of 50 miles per hour. If He takes the same route home, but his average speed is 60 miles per hour, what is the time, in hours, that it takes him to drive home?

Respuesta :

bhuvna789456

It takes 2 hours 30 minutes for him to drive home.

Step-by-step explanation:

case 1 :

  • Average speed = 50 miles per hour
  • Time taken = 3 hours

Distance = Speed [tex]\times[/tex] [tex]\time[/tex]time

⇒ 50  [tex]\times[/tex] [tex]\time[/tex]3

⇒ 150 miles

∴ Distance = 150 miles.

case 2 :

  • Average speed = 60 miles per hour
  • Distance = 150 miles

Time taken = Distance / speed

⇒ 150 / 60

⇒ 2.5 hours (2 and 1/2 hours)

⇒ 2 hours 30 minutes.

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