Question

Emmanuelle travels the first 60 miles of a trip at an average rate of 30 miles per hour. For the next 120 miles she averages 40 miles per hour. What is her average rate for the entire trip?

Answer 1

60miles / 30mph = 2 hours , 120 miles / 40 mph = 3 hours, total distance = 180 miles, so 180 / 5 hours = 36mph

Answer 2

Thanks!