Events & Promotions
|
|
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.
Aug 1901:00 PM PDT
-02:00 PM PDT
Join us in a live GMAT practice session and solve 25 challenging GMAT questions with other test takers in timed conditions, covering GMAT Quant, Data Sufficiency, Data Insights, Reading Comprehension, and Critical Reasoning questions.- Aug 11
12:00 PM PDT
-01:00 PM PDT
- Know exactly what to study, every day - Built by the GMAT Club community - 100% free, no sign-up needed - Aug 18
08:30 AM PDT
-09:30 AM PDT
Strong applicants do not always write strong MBA essays. In this session, we break down 5 common MBA essay mistakes that can quietly weaken an otherwise competitive application. - Aug 18
10:00 AM PDT
-11:00 AM PDT
Is GMAT Quant really a math test? Many test takers approach GMAT Quant with one of two beliefs: either “I’m not a math person, so I’ll struggle,” or “I’m good at math, so Quant should be easy.” But the GMAT often surprises both groups. - Aug 18
10:00 AM PDT
-11:00 AM PDT
In this episode of the GMAT Ninja Podcast, Charles and Brian Prestia bring six of the wildest GMAT improvement stories they’ve seen across decades of teaching. - Aug 20
10:00 AM PDT
-11:00 AM PDT
Solve GRE practice problems covering Quantitative reasoning, Verbal Reasoning, Text Completion, Sentence Equivalence, and Reading Comprehension Problems. Take this GRE practice quiz live with peers, analyze your GRE study progress 
Aug 2210:00 AM EDT
-01:00 PM EDT
Elite scores are possible when you enroll in a powerful GMAT course, taught live online + 6 months access to TTP OnDemand video courses included! Class starts Saturdays August 22, 2026 - Nov. 14, 2026, 10:00am-1:00pm EST
Aug 2211:00 AM EDT
-12:00 PM EDT
Top Scores Start with a Elite Online Prep Course. Enroll for 6 months of access to over 400 hours of GMAT video lessons AND 715+ Score Guarantee!
Aug 2507:00 PM EDT
-08:00 PM EDT
Stuck at the same GMAT score no matter how much you study? The secret to higher scores isn't doing more practice problems, it's knowing how to read your practice test data.
16 Jul 2026, 08:00
Kudos
Bookmarks
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
79% (01:48) correct
21%
(01:59)
wrong
based on 260
sessions
History
Date
Time
Result
Not Attempted Yet
A courier traveled from Hillford to Lakeshore in three consecutive legs, with no stops between the legs. On the first leg, the courier’s average (arithmetic mean) speed was 40 kilometers per hour; on the second leg, the courier’s average (arithmetic mean) speed was 60 kilometers per hour; and on the third leg, the courier’s average (arithmetic mean) speed was 80 kilometers per hour. What was the courier’s average speed for the entire trip?
(1) The ratio of the times the courier spent on the first, second, and third legs, respectively, was 3:2:1.
(2) The ratio of the lengths of the first, second, and third legs, respectively, was 3:3:2.
(1) The ratio of the times the courier spent on the first, second, and third legs, respectively, was 3:2:1.
(2) The ratio of the lengths of the first, second, and third legs, respectively, was 3:3:2.
|
⚠️ Important: GMAT Club does not allow AI-generated posts. AI-generated solutions are not eligible for kudos, and users who post them may face moderation action, including a ban.
M46-57
16 Jul 2026, 09:00
Kudos
Bookmarks
GMAT Club Official Solution:
A courier traveled from Hillford to Lakeshore in three consecutive legs, with no stops between the legs. On the first leg, the courier’s average (arithmetic mean) speed was 40 kilometers per hour; on the second leg, the courier’s average (arithmetic mean) speed was 60 kilometers per hour; and on the third leg, the courier’s average (arithmetic mean) speed was 80 kilometers per hour. What was the courier’s average speed for the entire trip?
The average speed for the entire trip is:
total distance / total time
(1) The ratio of the times the courier spent on the first, second, and third legs, respectively, was 3:2:1.
Let the times spent on the first, second, and third legs be 3t, 2t, and t, respectively.
Then the distances were:
• First leg: 40 * 3t = 120t
• Second leg: 60 * 2t = 120t
• Third leg: 80 * t = 80t
So the total distance was:
120t + 120t + 80t = 320t
The total time was:
3t + 2t + t = 6t
Therefore, the average speed for the entire trip was:
320t/(6t) = 160/3 kilometers per hour
Sufficient.
(2) The ratio of the lengths of the first, second, and third legs was 3:3:2.
Let the lengths of the first, second, and third legs be 3d, 3d, and 2d, respectively.
Then the times were:
• First leg: 3d/40
• Second leg: 3d/60
• Third leg: 2d/80
So the total distance was:
3d + 3d + 2d = 8d
The total time was:
3d/40 + 3d/60 + 2d/80 = 3d/20
Therefore, the average speed for the entire trip was:
8d/(3d/20) = 160/3 kilometers per hour
Sufficient.
Answer: D.
A courier traveled from Hillford to Lakeshore in three consecutive legs, with no stops between the legs. On the first leg, the courier’s average (arithmetic mean) speed was 40 kilometers per hour; on the second leg, the courier’s average (arithmetic mean) speed was 60 kilometers per hour; and on the third leg, the courier’s average (arithmetic mean) speed was 80 kilometers per hour. What was the courier’s average speed for the entire trip?
The average speed for the entire trip is:
total distance / total time
(1) The ratio of the times the courier spent on the first, second, and third legs, respectively, was 3:2:1.
Let the times spent on the first, second, and third legs be 3t, 2t, and t, respectively.
Then the distances were:
• First leg: 40 * 3t = 120t
• Second leg: 60 * 2t = 120t
• Third leg: 80 * t = 80t
So the total distance was:
120t + 120t + 80t = 320t
The total time was:
3t + 2t + t = 6t
Therefore, the average speed for the entire trip was:
320t/(6t) = 160/3 kilometers per hour
Sufficient.
(2) The ratio of the lengths of the first, second, and third legs was 3:3:2.
Let the lengths of the first, second, and third legs be 3d, 3d, and 2d, respectively.
Then the times were:
• First leg: 3d/40
• Second leg: 3d/60
• Third leg: 2d/80
So the total distance was:
3d + 3d + 2d = 8d
The total time was:
3d/40 + 3d/60 + 2d/80 = 3d/20
Therefore, the average speed for the entire trip was:
8d/(3d/20) = 160/3 kilometers per hour
Sufficient.
Answer: D.
General Discussion
16 Jul 2026, 08:26
Kudos
Bookmarks
i am going with the option d.
avg speed = total distance/total time
A - time ratio 3:2:1, speed 40, 60, 80.
thus can find distance of each leg. this will give a unique total distance and total time. thus suff.
B - distance ratio 3:3:2 and the speeds, so can find the time for each leg, leaves a unique total time and a unique average speed, thus suff.
avg speed = total distance/total time
A - time ratio 3:2:1, speed 40, 60, 80.
thus can find distance of each leg. this will give a unique total distance and total time. thus suff.
B - distance ratio 3:3:2 and the speeds, so can find the time for each leg, leaves a unique total time and a unique average speed, thus suff.
