A train travels from Albany to Syracuse, a distance of 120 miles, at : GMAT Problem Solving (PS)
Check GMAT Club App Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 09 Dec 2016, 16:28

### 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

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# A train travels from Albany to Syracuse, a distance of 120 miles, at

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
TAGS:

### Hide Tags

Intern
Status: pursuing a dream
Joined: 02 Jun 2011
Posts: 45
Schools: MIT Sloan (LGO)
Followers: 1

Kudos [?]: 76 [0], given: 10

A train travels from Albany to Syracuse, a distance of 120 miles, at [#permalink]

### Show Tags

13 Aug 2011, 06:46
3
This post was
BOOKMARKED
00:00

Difficulty:

25% (medium)

Question Stats:

73% (02:47) correct 27% (02:11) wrong based on 168 sessions

### HideShow timer Statistics

A train travels from Albany to Syracuse, a distance of 120 miles, at the average rate of 50 miles per hour. The train then travels back to Albany from Syracuse. The total travelling time of the train is 5 hours and 24 minutes. What was the average rate of speed of the train on the return trip to Albany?

A: 60 mph
B: 50 mph
C: 48 mph
D: 40 mph
E: 35 mph
[Reveal] Spoiler: OA
Math Forum Moderator
Joined: 20 Dec 2010
Posts: 2021
Followers: 162

Kudos [?]: 1670 [1] , given: 376

Re: A train travels from Albany to Syracuse, a distance of 120 miles, at [#permalink]

### Show Tags

13 Aug 2011, 07:40
1
This post received
KUDOS
1
This post was
BOOKMARKED
LGOdream wrote:
A train travels from Albany to Syracuse, a distance of 120 miles, at the average rate of 50 miles per hour. The train then travels back to Albany from Syracuse. The total traveling time of the train is 5 hours and 24 minutes. What was the average rate of speed of the train on the return trip to Albany?

A: 60 mph
B: 50 mph
C: 48 mph
D: 40 mph
E: 35 mph

What would be the fastest / most efficient approach? The total travelling time being in hours and minutes is really annoying.

5 hours 24 minutes = $$5+\frac{24}{60}hours=5+\frac{2}{5}hours=\frac{27}{5}hours$$

From Albany to Syracuse,
D=120 miles
t=?
s=50 m/h

t*s=D
t=D/s=120/50=12/5 hours

Thus, time spent coming back = Total time-time spent going from A to S= $$\frac{27}{5}-\frac{12}{5}=\frac{15}{5}=3hours$$

Coming back:
Speed=D/t = 120/3=40 m/h

Ans: "D"
_________________
Director
Joined: 03 May 2007
Posts: 886
Schools: University of Chicago, Wharton School
Followers: 6

Kudos [?]: 188 [0], given: 7

Re: A train travels from Albany to Syracuse, a distance of 120 miles, at [#permalink]

### Show Tags

13 Aug 2011, 17:49
LGOdream wrote:
A train travels from Albany to Syracuse, a distance of 120 miles, at the average rate of 50 miles per hour. The train then travels back to Albany from Syracuse. The total travelling time of the train is 5 hours and 24 minutes. What was the average rate of speed of the train on the return trip to Albany?

A: 60 mph
B: 50 mph
C: 48 mph
D: 40 mph
E: 35 mph

What would be the fastest / most efficient approach? The total travelling time being in hours and minutes is really annoying.

Total time taken 5 hours 24 minuets
Time taken to drive Albany to Syracuse = 120 miles /50 miles = 2 hours 24 minuets (here is a chance of doing 40 minuets instead of 24 minuets. This is a trap.)
Time taken to drive back from Albany to Syracuse = 5 hours 24 minuets - 2 hours 24 minuets = 3 hours

Speed to drive back from Albany to Syracuse = 120 / 3 hours = 40 mph.
Director
Joined: 01 Feb 2011
Posts: 757
Followers: 14

Kudos [?]: 114 [0], given: 42

Re: A train travels from Albany to Syracuse, a distance of 120 miles, at [#permalink]

### Show Tags

14 Aug 2011, 10:29
Total time for the round trip = 5 hr 24 min

time taken for A to S trip = 12/5

time taken for S to A trip = 5+(24/60) - 12/5 = 3hr

Speed on the return trip = 120/3 = 40 mph

Answer is D.
GMAT Club Legend
Joined: 09 Sep 2013
Posts: 12904
Followers: 562

Kudos [?]: 158 [0], given: 0

Re: A train travels from Albany to Syracuse, a distance of 120 miles, at [#permalink]

### Show Tags

05 Mar 2015, 14:09
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
Senior Manager
Status: Math is psycho-logical
Joined: 07 Apr 2014
Posts: 443
Location: Netherlands
GMAT Date: 02-11-2015
WE: Psychology and Counseling (Other)
Followers: 2

Kudos [?]: 104 [0], given: 169

Re: A train travels from Albany to Syracuse, a distance of 120 miles, at [#permalink]

### Show Tags

05 Mar 2015, 15:31
99% of the cases I will make the RTD chart:

................R............T..........D
GO...........50.........2.4........120
BACK........40..........3..........120
ALL.......................5.4........240

First we need to note the measurement. So, the question asks for the Rate of BACK, and we are given the initial Rate for GO in miles per hour, so we need the Times to be in hours. So, 5 hours and 24 minutes will be 5.4 hours.

We only need to find how much 24 minutes are in hours, so 24/60 = 2/5 = 0,4. We add this to 5 hours, so total 5.4 hours.

We find the Time for GO like this:
50T=120
T=2.4

Now, we are only missing the time for BACK. We subtract 2.4 from 5.4 and end up with 3.

Finally, R*3=120 --> R = 40. ANS D
Re: A train travels from Albany to Syracuse, a distance of 120 miles, at   [#permalink] 05 Mar 2015, 15:31
Similar topics Replies Last post
Similar
Topics:
5 If two trains are 120 miles apart and are traveling toward each other 3 01 Oct 2016, 02:12
1 Train A is traveling at 40 miles per hour and Train B is traveling on 1 16 Feb 2016, 00:02
4 Train P and Q travel from A to B at 100 mph, and 120 mph respectively. 4 01 Dec 2015, 09:42
4 A train travels from New York to Chicago, a distance of appr 6 06 Mar 2014, 02:09
5 A man travels 120 miles by ship, 450 by train and 60 by car 9 21 Dec 2011, 05:33
Display posts from previous: Sort by

# A train travels from Albany to Syracuse, a distance of 120 miles, at

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics

 Powered by phpBB © phpBB Group and phpBB SEO Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.