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

It is currently 23 May 2019, 10:11

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 vehicle averaged x miles per hour for 3/2 hours and y miles per hour

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

Hide Tags

 
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 55266
A vehicle averaged x miles per hour for 3/2 hours and y miles per hour  [#permalink]

Show Tags

New post 20 Mar 2018, 06:41
00:00
A
B
C
D
E

Difficulty:

  65% (hard)

Question Stats:

54% (01:47) correct 46% (01:46) wrong based on 97 sessions

HideShow timer Statistics

Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 55266
Re: A vehicle averaged x miles per hour for 3/2 hours and y miles per hour  [#permalink]

Show Tags

New post 20 Mar 2018, 06:45
Bunuel wrote:
A vehicle averaged x miles per hour for 3/2 hours and y miles per hour for 5/2 hours on a nonstop trip of d miles. What was the average speed, in miles per hour, for the entire trip?

(1) x = y + 10
(2) d = 255


16. Distance/Rate Problems



For more check below:
ALL YOU NEED FOR QUANT ! ! !
Ultimate GMAT Quantitative Megathread
_________________
examPAL Representative
User avatar
P
Joined: 07 Dec 2017
Posts: 1056
Re: A vehicle averaged x miles per hour for 3/2 hours and y miles per hour  [#permalink]

Show Tags

New post 20 Mar 2018, 06:56
Bunuel wrote:
A vehicle averaged x miles per hour for 3/2 hours and y miles per hour for 5/2 hours on a nonstop trip of d miles. What was the average speed, in miles per hour, for the entire trip?

(1) x = y + 10
(2) d = 255


As this is a rate/time question, we'll need two out of rate, time and work to solve.
We'll look for a statement that gives us this information, a Logical approach.

We're given the speed as an equation with x and y, the total time ( = 3/2+5/2) and told that the distance is d.
To find out the speed, we need to know both x and y so we can calculate directly or d so we can calculate d/t

(1) this does not give us what we need.
Insufficient.

(2) we can now calculate distance/time = average speed.
Sufficient.

(B) is our answer.
_________________
Manager
Manager
User avatar
B
Joined: 21 Jan 2018
Posts: 50
Location: India
GPA: 2.85
WE: Consulting (Consulting)
CAT Tests
Re: A vehicle averaged x miles per hour for 3/2 hours and y miles per hour  [#permalink]

Show Tags

New post 20 Mar 2018, 21:47
Bunuel wrote:
A vehicle averaged x miles per hour for 3/2 hours and y miles per hour for 5/2 hours on a nonstop trip of d miles. What was the average speed, in miles per hour, for the entire trip?

(1) x = y + 10
(2) d = 255



\(Average Speed = \frac{Total Distance}{Total Time}\)

From the stem we get

\(d = \frac{3x}{2}+\frac{5y}{2}\)
t = 4

Statement 1 : x = y+10 ----> This does not give us the value for total distance. Insufficient

Statement 2 : d=225 ------> We have total time from stem and total distance from statement 2 . Sufficient
_________________
Regards ,
Dhruv
_________________
Kudos will encourage many others, like me.

Please Give +1 Kudos if you liked the post!!

Thanks :-D
CEO
CEO
User avatar
P
Joined: 18 Aug 2017
Posts: 3518
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
GMAT ToolKit User Premium Member CAT Tests
Re: A vehicle averaged x miles per hour for 3/2 hours and y miles per hour  [#permalink]

Show Tags

New post 03 Apr 2019, 05:49
Bunuel wrote:
A vehicle averaged x miles per hour for 3/2 hours and y miles per hour for 5/2 hours on a nonstop trip of d miles. What was the average speed, in miles per hour, for the entire trip?

(1) x = y + 10
(2) d = 255


speed x mph= 2d/3 and ymph= 2d/3
avg speed = 2d/4 = d/2
#1
no info of d insufficient
#2
d=225
sufficeint
IMO B
_________________
If you liked my solution then please give Kudos. Kudos encourage active discussions.
GMAT Club Bot
Re: A vehicle averaged x miles per hour for 3/2 hours and y miles per hour   [#permalink] 03 Apr 2019, 05:49
Display posts from previous: Sort by

A vehicle averaged x miles per hour for 3/2 hours and y miles per hour

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


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®.