It is currently 20 Oct 2017, 15:24

### 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

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

# Adam and Beth each drove from Smallville to Crown City

Author Message
TAGS:

### Hide Tags

Manager
Joined: 15 Apr 2016
Posts: 84

Kudos [?]: 20 [0], given: 66

### Show Tags

25 Jun 2016, 22:17
4
This post was
BOOKMARKED
00:00

Difficulty:

15% (low)

Question Stats:

83% (00:55) correct 17% (01:33) wrong based on 105 sessions

### HideShow timer Statistics

Adam and Beth each drove from Smallville to Crown City by different routes. Adam drove an an average speed of 40 miles per hour and completed the trip in 30 minutes. Beth's route was 5 miles longer, and it took her 20 minutes more than Adam to complete the trip. How many miles per hour was Beth's average speed on this trip?
(A) 24
(B) 30
(C) 48
(D) 54
(E) 75

I dont know if the above problem was already discussed, but i couldn find in the forum
[Reveal] Spoiler: OA

_________________

Cheers,
Shri
-------------------------------
GMAT is not an Exam... it is a war .. Let's Conquer !!!

Kudos [?]: 20 [0], given: 66

Manager
Joined: 22 Jun 2016
Posts: 242

Kudos [?]: 95 [2], given: 10

Re: Adam and Beth each drove from Smallville to Crown City [#permalink]

### Show Tags

25 Jun 2016, 23:21
2
KUDOS
Speed = Distance/Time

Distance for Adam = Speed * Time = 40 * 1/2 = 20 miles

Distance for Beth = Distance for Adam+5 = 20+5 = 25 miles
Time taken by Beth = Time taken by Adam + (1/3 hour) = 1/2+1/3 = 5/6
Speed of Beth = D/T = 25/(5/6) = 25*6/5 = 30 miles per hour

---------------------------------

P.S. Don't forget to give Kudos
_________________

P.S. Don't forget to give Kudos

Kudos [?]: 95 [2], given: 10

Intern
Joined: 05 May 2016
Posts: 39

Kudos [?]: 9 [0], given: 61

Re: Adam and Beth each drove from Smallville to Crown City [#permalink]

### Show Tags

14 Jul 2016, 09:38
14101992 wrote:
Speed = Distance/Time

Distance for Adam = Speed * Time = 40 * 1/2 = 20 miles

Distance for Beth = Distance for Adam+5 = 20+5 = 25 miles
Time taken by Beth = Time taken by Adam + (1/3 hour) = 1/2+1/3 = 5/6
Speed of Beth = D/T = 25/(5/6) = 25*6/5 = 30 miles per hour

---------------------------------

P.S. Don't forget to give Kudos

Quote:

Adam takes 30 mins at speed 40 mph
Convert 30 mins to 1/2 hr.

Let say Beth travels at "s" mph and takes 20 mins more = 50 mins
Convert 50 mins to 5/6 hr

Distance = Speed * Time

Given that Beth travels for 5 more miles.

>>> S * (5/6) - 40*(1/2) = 5
>>> S * (5/6) = 25
>>> S = 30

Kudos [?]: 9 [0], given: 61

GMAT Club Legend
Joined: 09 Sep 2013
Posts: 16636

Kudos [?]: 273 [0], given: 0

Re: Adam and Beth each drove from Smallville to Crown City [#permalink]

### Show Tags

26 Aug 2017, 14:15
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.
_________________

Kudos [?]: 273 [0], given: 0

Re: Adam and Beth each drove from Smallville to Crown City   [#permalink] 26 Aug 2017, 14:15
Display posts from previous: Sort by