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.
Apr 2512:30 AM EDT
-01:30 AM EDT
At one point, she believed GMAT wasn’t for her. After scoring 595, self-doubt crept in and she questioned her potential. But instead of quitting, she made the right strategic changes. The result? A remarkable comeback to 695. Check out how Saakshi did it.
Apr 2610:00 AM EDT
-11:00 AM EDT
The Target Test Prep course represents a quantum leap forward in GMAT preparation, a radical reinterpretation of the way that students should study. Try before you buy with a 5-day, full-access trial of the course for FREE!
Apr 2711:00 AM EDT
-12:00 PM EDT
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
18 Jun 2022, 14:45
Kudos
Bookmarks
E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
86% (01:43) correct
14%
(02:23)
wrong
based on 85
sessions
History
Date
Time
Result
Not Attempted Yet
Ship A departs dock X and heads towards dock Y at a constant speed of 10 miles per hour. 2 later, ship B departs dock X and travels along the same route at a constant speed of 14 miles per hour. Ship A does not reach dock Y before ship B. How many hours will it take for ship B to catch up with ship A?
A. 3 hrs
B. 3.5 hrs
C. 4 hrs
D. 4.5 hrs
E. 5 hrs
A. 3 hrs
B. 3.5 hrs
C. 4 hrs
D. 4.5 hrs
E. 5 hrs
18 Jun 2022, 16:19
Kudos
Bookmarks
Bunuel
Three ways to approach this problem.
First, one consolidated formula.
10(t+2)=14t
10t+20=14t
20=4t
t=5
Answer choice E
Second, "pieces of the puzzle."
A travels for two hours at 10mph before B starts. A makes it 20 miles before B gets going. B gains on A at a rate of 14-10=4mph. B will take 5 hours to close the 20 miles.
Answer choice E
Third, Plug In The Answers.
I usually like trying B and D, but the other choices look easier to work with.
Let's try C. B travels for 4 hours at 14 mph, so 56 miles. A would take 5.6 hours to do 56 miles, but A traveled for 2 hours alone and then 4 hours while B was also en route. That's not 5.6 hours.
Let's try E. B travels for 5 hours at 14mph, so 70 miles. A would take 7 hours to do 70 miles, which is exactly how long A traveled.
Answer choice E
21 Oct 2023, 14:37
Kudos
Bookmarks
Time to catch up = Headstart/Difference in speed
headstart = 20: that is because A left 2 hours before B, at a speed of 10mph -> 10*2 = 20
difference in speed = Fast - Slow = B - A = 14 - 10 = 4mph
Time to catch up = 20/4 = 5 hours
headstart = 20: that is because A left 2 hours before B, at a speed of 10mph -> 10*2 = 20
difference in speed = Fast - Slow = B - A = 14 - 10 = 4mph
Time to catch up = 20/4 = 5 hours
