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.
A car leaves New York at 12:00 driving due west at an average speed of
[#permalink]
20 Oct 2021, 09:30
20 Oct 2021, 09:30
1
Expert Reply
3
Bookmarks
00:00
Question Stats:
72% (02:00) correct
27% (02:01) wrong based on 37 sessions
Hide Show timer Statistics
A car leaves New York at 12:00 driving due west at an average speed of 54 miles per hour. A second car leaves New York 2 hours later, driving due west on the same road, at an average speed of 66 miles per hour. If both cars continue to move at the same rates, at what time will the second car reach the first?
9:00
10:00
10:30
11:00
11:30
9:00
10:00
10:30
11:00
11:30
GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2506
Given Kudos: 1055
GPA: 3.39
Re: A car leaves New York at 12:00 driving due west at an average speed of
[#permalink]
27 Oct 2021, 06:40
27 Oct 2021, 06:40
1
Expert Reply
+1 Kudos to posts containing answer with explanation
A car leaves New York at 12:00 driving due west at an average speed of
[#permalink]
31 Oct 2021, 02:14
31 Oct 2021, 02:14
2
I don't know if this is the proper way to approach this problem, but here it goes:
Let t be the start time at which car1 starts. So the distance travelled by car 1 would be d= 54t
Car 2 leaves 2 hours later. The distance travelled by car 1 would be d = 66(t+2).
54t = 66(t+2)
Solving the above should give the time as 11 hours. Adding 11 hours to 12:00 we get, 11:00.
The answer is D
Let t be the start time at which car1 starts. So the distance travelled by car 1 would be d= 54t
Car 2 leaves 2 hours later. The distance travelled by car 1 would be d = 66(t+2).
54t = 66(t+2)
Solving the above should give the time as 11 hours. Adding 11 hours to 12:00 we get, 11:00.
The answer is D
