Question

A truck driver averages 60 mph while d delivering freight and 45 mph on the return trip. There total driving time is 7 hours. What is the distance one way.

Answer 1

The one - way distance traveled by the truck driver is 180 miles

Let the Distance covered = d

Recall :

• Time = (Distance ÷ Speed)

• To trip time = (d / 60)

• Return trip time = (d / 45)

Total trip time = To trip time + Return trip time

Inputting the Values into the formula :

7 = (d/60 + d/45)

L.C.M of 60 and 45 is 180

7 = (3d + 4d) / 180

180 × 7 = 7d

1260 = 7d

Divide both sides by 7

1260 /7 = d

180 = d

Therefore, the one-way distance traveled by the truck driver is 180 miles

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