Question

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?

Answer 1

It will take 2.5 hours to drive home.

Step-by-step explanation:

Engineer Kweku takes time to drive to his brother's house = 3 hours

His average speed was 50 miles per hour.

Distance = speed × time

              = 50 × 3

              = 150 miles.

Distance between his house and his brother's house = 150 miles

If his average speed is 60 miles per hour.

To calculate time we use formula :

$Time=\frac{distance}{speed}$

         $=\frac{150}{60}$

          = 2.5 hours

It will take 2.5 hours to drive home.

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