GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 20 Jun 2018, 08:26

### 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

# What was Marla's travel time from Minneapolis to Baltimore?

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

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 46205
What was Marla's travel time from Minneapolis to Baltimore? [#permalink]

### Show Tags

22 Jan 2018, 01:23
00:00

Difficulty:

65% (hard)

Question Stats:

58% (01:39) correct 42% (02:05) wrong based on 84 sessions

### HideShow timer Statistics

What was Marla's travel time from Minneapolis to Baltimore?

(1) If Marla's average speed during the nonstop trip had been 12 miles per hour faster her time would have been 3 hours fewer than it was.
(2) If Marla's average speed had been 1.5 times as fast the trip would have taken 12 hours.

_________________
PS Forum Moderator
Joined: 25 Feb 2013
Posts: 1142
Location: India
GPA: 3.82
What was Marla's travel time from Minneapolis to Baltimore? [#permalink]

### Show Tags

22 Jan 2018, 10:07
Bunuel wrote:
What was Marla's travel time from Minneapolis to Baltimore?

(1) If Marla's average speed during the nonstop trip had been 12 miles per hour faster her time would have been 3 hours fewer than it was.
(2) If Marla's average speed had been 1.5 times as fast the trip would have taken 12 hours.

let the distance between the two places be $$d$$ and average speed be v. we need the value $$\frac{d}{v}$$

Statement 1: if the average speed is $$v$$, then we have $$\frac{d}{v}-\frac{d}{(v+12)}=3$$

we need to find $$\frac{d}{v}$$, but there are two variable and one equation. Hence value cannot be found. Insufficient

Statement 2: if the original average speed is $$v$$ then the new speed$$=1.5v$$

hence time taken $$\frac{d}{1.5v}=12 =>\frac{d}{v}=12*1.5$$. Sufficient

Option B
SC Moderator
Joined: 13 Apr 2015
Posts: 1689
Location: India
Concentration: Strategy, General Management
GMAT 1: 200 Q1 V1
GPA: 4
WE: Analyst (Retail)
Re: What was Marla's travel time from Minneapolis to Baltimore? [#permalink]

### Show Tags

22 Jan 2018, 10:14
St1: d = st --- (1)
d = (s + 12)(t - 3) --- (2)
st = (s + 12)(t - 3)
Not sufficient to calculate t as we have 2 unknowns.

St2: d = st
d = (3/2)s * 12
t = 18 hours
Sufficient

Answer: B
Re: What was Marla's travel time from Minneapolis to Baltimore?   [#permalink] 22 Jan 2018, 10:14
Display posts from previous: Sort by

# What was Marla's travel time from Minneapolis to Baltimore?

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

 Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne 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®.