by: WA
29 mins
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.
Sep 1507:00 PM EDT
-09:00 PM EST
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 Tues/Thurs Sept. 15, 2026 - Nov. 15, 2027, 7:00pm-9:00pm EST
Sep 2107:00 PM EDT
-10:00 PM EDT
Boost your GMAT score in less than one month in a live online class + 6 months access to TTP OnDemand video courses included! Class starts Mon, Tues, Wed, Thur, Fri Sept. 21, 2026 - Oct. 9, 2027, 7:00pm-10:00pm EST
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
89% (01:00) correct
11%
(01:18)
wrong
based on 72
sessions
History
Date
Time
Result
Not Attempted Yet
Working alone, Bud can complete a particular task in 6 hours. Lou, working alone, can complete the same task in 8 hours. If Bud and Lou work together, how many hours will it take them to complete the task?
A. 7
B. \(3\frac{4}{7}\)
C. \(3\frac{1}{2}\)
D. \(3\frac{3}{7}\)
E. 3
_________________
A. 7
B. \(3\frac{4}{7}\)
C. \(3\frac{1}{2}\)
D. \(3\frac{3}{7}\)
E. 3
_________________
New to the GMAT Club?
- • Questions: Question Bank | Bunuel's Signature Collection
• Tests: GMAT Club Tests | Forum Quiz
• Guides: Quantitative | Critical Reasoning | Reading Comprehension | Ultimate Quant Guide | All You Need for Quant
• Rules: Quantitative | Verbal
DashingNightmare2
Current Student
Joined: 30 May 2021
Last visit: 19 Jun 2022
Posts: 101
Location: India
Concentration: Marketing, Technology
Schools: ISB '23 (A)
GMAT 1: 750 Q50 V41
GPA: 2.96
Working alone,
Bud can complete a particular task in 6 hours => he completes \(\frac{1}{6}\) task in 1 hour
Lou, working alone, can complete the same task in 8 hours => he completes \(\frac{1}{8}\) task in 1 hour
Together they complete in hr = \(\frac{1}{6}\) +\(\frac{1}{8}\) =\(\frac{7}{24}\) task
So they will need \(\frac{24}{7}\) hours
Hence D
Bud can complete a particular task in 6 hours => he completes \(\frac{1}{6}\) task in 1 hour
Lou, working alone, can complete the same task in 8 hours => he completes \(\frac{1}{8}\) task in 1 hour
Together they complete in hr = \(\frac{1}{6}\) +\(\frac{1}{8}\) =\(\frac{7}{24}\) task
So they will need \(\frac{24}{7}\) hours
Hence D
Working alone Bud takes = 6 hrs to complete the task
Working alone Lou takes = 8 hrs to complete the task
=> Working together the time taken = \(\frac{(8*6)}{(8+6)}\) = \(\frac{48}{14} = \frac{24}{7} = 3 \frac{3}{7}\)
Option D
Working alone Lou takes = 8 hrs to complete the task
=> Working together the time taken = \(\frac{(8*6)}{(8+6)}\) = \(\frac{48}{14} = \frac{24}{7} = 3 \frac{3}{7}\)
Option D
Moderator:
Announcements
Tuck at Dartmouth
AI at Dartmouth Tuck: How the School Is Preparing Leaders for the Age of Artificial Intelligence
Inside the courses, research, and hands-on learning defining wise, decisive leadership in an AI-driven world.
Read More
Inside the courses, research, and hands-on learning defining wise, decisive leadership in an AI-driven world.
Read More
Top 5 GMAT Debrief Videos
Success stories and strategies from high-scoring candidates.