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%
OA E
Source: Official Guide
A technician makes a round-trip to and from a certain service center by the same route. If the technician completes
This topic has expert replies
-
- Moderator
- Posts: 7187
- Joined: Thu Sep 07, 2017 4:43 pm
- Followed by:23 members
Timer
00:00
Your Answer
A
B
C
D
E
Global Stats
GMAT/MBA Expert
- Brent@GMATPrepNow
- GMAT Instructor
- Posts: 16207
- Joined: Mon Dec 08, 2008 6:26 pm
- Location: Vancouver, BC
- Thanked: 5254 times
- Followed by:1268 members
- GMAT Score:770
Always check the answer choices before you do ANY work.BTGmoderatorDC wrote: ↑Mon May 03, 2021 3:23 pmA 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%
OA E
Source: Official Guide
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