GRE Prep 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.
Train A is traveling at 40 miles per hour and Train B is traveling on
[#permalink]
20 Apr 2021, 01:27
20 Apr 2021, 01:27
Expert Reply
00:00
Question Stats:
100% (01:20) correct
0% (00:00) wrong based on 20 sessions
Hide Show timer Statistics
Train A is traveling at 40 miles per hour and Train B is traveling on a parallel track in the same direction at 60 miles per hour. Currently, Train A is 15 miles ahead of Train B. How many minutes will it take Train B to catch up with Train A?
A. 45
B. 60
C. 75
D. 80
E. 90
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
A. 45
B. 60
C. 75
D. 80
E. 90
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: Train A is traveling at 40 miles per hour and Train B is traveling on
[#permalink]
20 Apr 2021, 05:35
20 Apr 2021, 05:35
1
Carcass wrote:
Train A is traveling at 40 miles per hour and Train B is traveling on a parallel track in the same direction at 60 miles per hour. Currently, Train A is 15 miles ahead of Train B. How many minutes will it take Train B to catch up with Train A?
A. 45
B. 60
C. 75
D. 80
E. 90
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
A. 45
B. 60
C. 75
D. 80
E. 90
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
I call this a shrinking gap question.
Currently, Train A is 15 miles ahead of Train B.
So, the GAP = 15 miles
Train A is traveling at 40 miles per hour and Train B is traveling on a parallel track in the same direction at 60 miles per hour.
Speed difference = 60 mph - 40 mph = 20 miles per hour
So, the GAP shrinks at a rate of 20 miles per hour
How many minutes will it take Train B to catch up with Train A?
In others how long will it take the GAP to decrease from 15 miles to 0 miles.
Time = distance/rate
= (15 miles)/(20 miles per hour)
= 3/4 HOURS
= 45 minutes
Answer: A
gmatclubot
Re: Train A is traveling at 40 miles per hour and Train B is traveling on [#permalink]
20 Apr 2021, 05:35
Moderators:
