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A technician makes a round-trip to and from a certain service center by the same route. If the technician completes the

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by VJesus12 » Thu Oct 07, 2021 1:53 am

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B

C

D

E

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Difficulty—

A technician makes a round-trip to and from a certain service center by the same route. If the technician completes the drive to the center and then completes \(10\) percent of the drive from the center, what percent of the round-trip has the technician completed?

A) \(5\%\)
B) \(10\%\)
C) \(25\%\)
D) \(40\%\)
E) \(55\%\)

Answer: E

Source: Official Guide
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Re: A technician makes a round-trip to and from a certain service center by the same route. If the technician completes

by Brent@GMATPrepNow » Thu Oct 07, 2021 5:45 am
VJesus12 wrote: ↑
Thu Oct 07, 2021 1:53 am
 A technician makes a round-trip to and from a certain service center by the same route. If the technician completes the drive to the center and then completes \(10\) percent of the drive from the center, what percent of the round-trip has the technician completed?

A) \(5\%\)
B) \(10\%\)
C) \(25\%\)
D) \(40\%\)
E) \(55\%\)

Answer: E

Source: Official Guide
Always check the answer choices before you do ANY work.

The complete round trip consists of driving to the service center and then back home again.
So, once the technician drives to the service center he/she has already competed 50% of the entire trip.
Since the technician completes a portion of the trip back home, the correct answer must be greater than 50%
Only one answer choice works.
Answer: E
Brent Hanneson - Creator of GMATPrepNow.com
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