|
|
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
26 Apr 2017, 08:11
Kudos
Bookmarks
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
62% (01:41) correct
38%
(01:44)
wrong
based on 474
sessions
History
Date
Time
Result
Not Attempted Yet
Jason must drive from his home to his office by one of two possible routes. If he must also return by one of these routes, what is Jason's average speed on a round trip from his home to his office?
(1) The longer route is 3 times the shorter route.
(2) Jason's average speed while driving to his office along the longer route was 50 miles per hour and his average speed while returing home along the shorter route was 60 miles per hour.
(1) The longer route is 3 times the shorter route.
(2) Jason's average speed while driving to his office along the longer route was 50 miles per hour and his average speed while returing home along the shorter route was 60 miles per hour.
26 Apr 2017, 09:07
Kudos
Bookmarks
Bunuel
(1) The longer route is 3 times the shorter route. - Not sufficient
(2) Jason's average speed while driving to his office along the longer route was 50 miles per hour and his average speed while returing home along the shorter route was 60 - Not sufficient
(1) + (2)
Let x be the shorter distance and 3x be the longer distance.
Total time taken = (x/60) + (3x/50)
Average velocity = Total distance / Total time taken
= (4x) / (x/60) + (3x/50)
- Sufficient
Hence C.
Cheers!
12 Jan 2026, 14:32
Kudos
Bookmarks
Diwakar003
You're assuming it takes a short and a long route. He/she may take either the short or long route. Makes 3 different possible answers. 50 and 60 themselves are potential answers. Wouldn't you agree?
