Asked by peter

A motorist travels 120 miles to his destionation at an average speed of 60 miles per hour and returns to the starting point at an average speed of 40 miles per hour.His average speed for the entire trip is

1. 53 miles per hour
2. 52 miles per hour
3. 50 miles per hour
4. 48 miles per hour
5. 45 miles per hour

Answers

Answered by Steve
total distance: 240 miles
total time: 120/60 + 120/40 = 2+3 = 5 hours

avg speed: 240/5 = 48 mph
Answered by Jt
4.6
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