Question
A train covers a distance of 30 miles. It travels the first 20 miles at speed of 30 miles per hour, then the remaining 10
A train covers a distance of 30 miles. It travels the first 20 miles at speed of 30 miles per hour, then the remaining 10 miles of the journey at a speed of 60 miles per hour.
What is the mean speed for the whole journey?
Step by Step Solution
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for first 20 miles Speed distancetime 30 20time o...
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A Pathway To Introductory Statistics
Authors: Jay Lehmann
1st Edition
0134107179, 978-0134107172
