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It takes Mike 1 hour and 30 minutes to commute from home to work at an average speed of 40 miles per hour. If Mike

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It takes Mike 1 hour and 30 minutes to commute from home to work at an average speed of 40 miles per hour. If Mike

by BTGmoderatorDC » Thu Apr 23, 2020 6:27 pm

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It takes Mike 1 hour and 30 minutes to commute from home to work at an average speed of 40 miles per hour. If Mike returns home along the same route at an average speed of 45 miles per hour, how long does the return trip take?

A. 1 hour, 15 minutes

B. 1 hour, 20 minutes

C. 1 hour, 25 minutes

D. 1 hour, 30 minutes

E. 1 hour, 35 minutes



OA B

Source: Princeton Review
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Re: It takes Mike 1 hour and 30 minutes to commute from home to work at an average speed of 40 miles per hour. If Mike

by Jay@ManhattanReview » Thu Apr 23, 2020 9:42 pm
BTGmoderatorDC wrote: ↑
Thu Apr 23, 2020 6:27 pm
 It takes Mike 1 hour and 30 minutes to commute from home to work at an average speed of 40 miles per hour. If Mike returns home along the same route at an average speed of 45 miles per hour, how long does the return trip take?

A. 1 hour, 15 minutes

B. 1 hour, 20 minutes

C. 1 hour, 25 minutes

D. 1 hour, 30 minutes

E. 1 hour, 35 minutes

OA B

Source: Princeton Review
Time taken in return trip = (1 hour 30 min)*(40/45) = 90*(8/9) = 90 minutes = 1 hour 20 minutes

The correct answer: B

Hope this helps!

-Jay
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