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CliffsNotes Praxis II: Middle School Mathematics Test (0069) Test Prep

ISBN: 978-0-470-27822-2
Paperback
264 pages
November 2008
CliffsNotes Praxis II: Middle School Mathematics Test (0069) Test Prep (0470278226) cover image
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157 Page 157 Question 2
Page 157
Question 2
Insert “for one hour” into the question, as shown below in red. 2. Paul leaves his apartment at 7:00 AM, and drives 315 miles to his parents’ house. He stops only once during the trip. His average speed for the first 120 miles of the trip was 60 miles per hour. After driving 120 miles, Paul stops for one hour to have breakfast. After his stop, Paul drives an average speed of 65 miles per hour for the rest of the trip. (a). What was Paul’s average speed for the 315 mile trip if the average speed is calculated excluding the time Paul spent having breakfast. Show your work. (b). What was Paul’s average speed for the 315 mile trip if the average speed is calculated including the time Paul spent having breakfast. Show your work. (c). What time did Paul arrive at his parents’ house? Show your work.
12/28/2009