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

It is currently 24 Sep 2018, 04:49

Close

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

A round trip from A to B takes 2 hours by car for Sarah. If she drives

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

Hide Tags

DS Forum Moderator
avatar
P
Joined: 22 Aug 2013
Posts: 1343
Location: India
Premium Member
A round trip from A to B takes 2 hours by car for Sarah. If she drives  [#permalink]

Show Tags

New post 29 Jun 2018, 00:52
00:00
A
B
C
D
E

Difficulty:

  65% (hard)

Question Stats:

49% (01:44) correct 51% (01:41) wrong based on 48 sessions

HideShow timer Statistics

A round trip from A to B takes 2 hours by car for Sarah. If she drives at a uniform speed without stopping and the distance from A to B is lesser than distance from B to A due to a road diversion while returning, how much time does it take Sarah to drive from A to B?

(1) Total round trip distance from A to B and back is 90 miles.

(2) Distance from B to A is 25% more than the distance from A to B, because of the diversion.
Math Expert
User avatar
V
Joined: 02 Aug 2009
Posts: 6803
Re: A round trip from A to B takes 2 hours by car for Sarah. If she drives  [#permalink]

Show Tags

New post 29 Jun 2018, 06:36
A round trip from A to B takes 2 hours by car for Sarah. If she drives at a uniform speed without stopping and the distance from A to B is lesser than distance from B to A due to a road diversion while returning, how much time does it take Sarah to drive from A to B?

(1) Total round trip distance from A to B and back is 90 miles.
There is a diversion in return route so we cannot know the distance from A to Be
Insufficient

(2) Distance from B to A is 25% more than the distance from A to B, because of the diversion.
Since the speed is constant, the ratio of distance will give us ratio of time..
Distance travelled 100:125 or 4:5
So time will also be 4:5..
Time from A to B = 2*60*4/(4+5)=160/3=53.33 min
Sufficient

B
_________________

1) Absolute modulus : http://gmatclub.com/forum/absolute-modulus-a-better-understanding-210849.html#p1622372
2)Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html
3) effects of arithmetic operations : https://gmatclub.com/forum/effects-of-arithmetic-operations-on-fractions-269413.html


GMAT online Tutor

GMAT Club Bot
Re: A round trip from A to B takes 2 hours by car for Sarah. If she drives &nbs [#permalink] 29 Jun 2018, 06:36
Display posts from previous: Sort by

A round trip from A to B takes 2 hours by car for Sarah. If she drives

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

Events & Promotions

PREV
NEXT


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

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®.