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

It is currently 22 Oct 2019, 04:23

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

Tory drives eastwards 50 miles at an average speed of 40 miles per

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Senior Manager
Senior Manager
User avatar
V
Joined: 25 Dec 2018
Posts: 488
Location: India
Concentration: General Management, Finance
GMAT Date: 02-18-2019
GPA: 3.4
WE: Engineering (Consulting)
CAT Tests
Tory drives eastwards 50 miles at an average speed of 40 miles per  [#permalink]

Show Tags

New post 30 Mar 2019, 06:02
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

65% (01:10) correct 35% (01:06) wrong based on 20 sessions

HideShow timer Statistics

Tory drives eastwards 50 miles at an average speed of 40 miles per hour and returns along the same path at an average speed of 60 miles per hours. What is his average speed for the complete journey?

A. 24 mph
B. 45 mph
C. 48 mph
D. 50 mph
E. 55 mph
GMAT Club Legend
GMAT Club Legend
User avatar
V
Joined: 12 Sep 2015
Posts: 4016
Location: Canada
Re: Tory drives eastwards 50 miles at an average speed of 40 miles per  [#permalink]

Show Tags

New post 30 Mar 2019, 06:44
Top Contributor
mangamma wrote:
Tory drives eastwards 50 miles at an average speed of 40 miles per hour and returns along the same path at an average speed of 60 miles per hours. What is his average speed for the complete journey?

A. 24 mph
B. 45 mph
C. 48 mph
D. 50 mph
E. 55 mph


Average speed = (total distance traveled)/(total travel time)

TOTAL distance traveled = 50 miles + 50 miles = 100 miles

Time = distance/speed
So, time spent driving 40 mph = 50/40 = 5/4 hours
And time spent driving 60 mph = 50/60 = 5/6 hours
TOTAL driving time = 5/4 + 5/6 = 15/12 + 10/12 = 25/12 hours

Average speed = (100)/(25/12)
= (100)(12/25)
= 1200/25
= 48

Answer: C

Cheers,
Brent
_________________
Test confidently with gmatprepnow.com
Image
GMAT Club Legend
GMAT Club Legend
User avatar
D
Joined: 18 Aug 2017
Posts: 5031
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
GMAT ToolKit User Premium Member
Re: Tory drives eastwards 50 miles at an average speed of 40 miles per  [#permalink]

Show Tags

New post 30 Mar 2019, 09:32
mangamma wrote:
Tory drives eastwards 50 miles at an average speed of 40 miles per hour and returns along the same path at an average speed of 60 miles per hours. What is his average speed for the complete journey?

A. 24 mph
B. 45 mph
C. 48 mph
D. 50 mph
E. 55 mph


2*60*40/100
IMO C
48
GMAT Club Bot
Re: Tory drives eastwards 50 miles at an average speed of 40 miles per   [#permalink] 30 Mar 2019, 09:32
Display posts from previous: Sort by

Tory drives eastwards 50 miles at an average speed of 40 miles per

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





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