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

It is currently 23 Feb 2019, 02:55

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
Events & Promotions in February
PrevNext
SuMoTuWeThFrSa
272829303112
3456789
10111213141516
17181920212223
242526272812
Open Detailed Calendar
  • Free GMAT RC Webinar

     February 23, 2019

     February 23, 2019

     07:00 AM PST

     09:00 AM PST

    Learn reading strategies that can help even non-voracious reader to master GMAT RC. Saturday, February 23rd at 7 AM PT
  • FREE Quant Workshop by e-GMAT!

     February 24, 2019

     February 24, 2019

     07:00 AM PST

     09:00 AM PST

    Get personalized insights on how to achieve your Target Quant Score.

While covering a distance or 24 km, a man noticed that after walking f

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

Hide Tags

 
Senior DS Moderator
User avatar
V
Joined: 27 Oct 2017
Posts: 1207
Location: India
Concentration: International Business, General Management
GPA: 3.64
WE: Business Development (Energy and Utilities)
Premium Member CAT Tests
While covering a distance or 24 km, a man noticed that after walking f  [#permalink]

Show Tags

New post 27 Oct 2018, 09:26
7
00:00
A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

59% (02:27) correct 41% (02:56) wrong based on 79 sessions

HideShow timer Statistics

While covering a distance or 24 km, a man noticed that after walking for 1 hour and 40 minutes, the distance covered by him was \(5/7\) of the remaining distance. What was his speed in m/s?
A) 1.12
B) 1.21
C) 1.33
D) 1.55
E) 1.66

Weekly Quant Quiz #6 Question No 8


_________________

Win GMAT CLUB Test- Weekly Quant Quiz Contest
Weekly Quant Quiz Questions- Direct Download
SC: Confusable words

All you need for Quant, GMAT PS Question Directory,GMAT DS Question Directory
Error log/Key Concepts
Combination Concept: Division into groups
Question of the Day (QOTD)
Free GMAT CATS

Intern
Intern
avatar
B
Joined: 15 Jul 2018
Posts: 11
CAT Tests
Re: While covering a distance or 24 km, a man noticed that after walking f  [#permalink]

Show Tags

New post 27 Oct 2018, 09:46
Ans is E

After 1 hour 40 minutes, the distance D covered is D=5/7*(24-D)
on solving, D = 10km
therefore his speed was distance/time = (10*1000)/(100*60)= 1.66m/s
Intern
Intern
avatar
B
Joined: 09 May 2017
Posts: 4
Re: While covering a distance or 24 km, a man noticed that after walking f  [#permalink]

Show Tags

New post 27 Oct 2018, 10:01
Let us take the distance traveled till now as d
So, d= 5/7 * (24-d)
which gives d=10 km = 10000 m

1hr40min = 100*60 seconds

s=d/t = 10000/100*60 = 1.66

Ans: E
Intern
Intern
avatar
B
Joined: 18 Jul 2017
Posts: 2
Re: While covering a distance or 24 km, a man noticed that after walking f  [#permalink]

Show Tags

New post 27 Oct 2018, 11:02
He covered x and has y to go. We know

x+y= 24 and x=5/7y

so he covered x=10km=10000m in 100min=6000sec

Therefore speed = 10000/6000 = 10/6 = 1,66

Correct answer is E
Manager
Manager
avatar
G
Joined: 14 Jun 2018
Posts: 223
Re: While covering a distance or 24 km, a man noticed that after walking f  [#permalink]

Show Tags

New post 27 Oct 2018, 12:44
1
Let the distance he covered be x. Remaining distance = 24-x
x = 5(24-x)/7
7x = 120 - 5x
x = 10
Time taken to cover 10km = 1hr40 mins = 5/3hr
Speed in km/hr = 10*3/5 = 6
Speed in m/s = 6*5/18 = 5/3 = 1.66
Intern
Intern
avatar
B
Joined: 08 Jul 2018
Posts: 1
Re: While covering a distance or 24 km, a man noticed that after walking f  [#permalink]

Show Tags

New post 27 Oct 2018, 18:58
total D =24 => 24 = 5/7x+x
(24 = 5/7x+x) * 7
5x+7x=168
x=14
Therefore he covered 5/7 * 14 = 10 miles in 1hr and 40 min
Speed over this period can be expressed as
10km = 10,000 m
1hr40min= 100 min = 6000 sec
Speed = 10000/6000= 1.66 m/s
Manager
Manager
User avatar
B
Joined: 12 Sep 2017
Posts: 142
Re: While covering a distance or 24 km, a man noticed that after walking f  [#permalink]

Show Tags

New post 17 Jan 2019, 19:29
gmatbusters wrote:
While covering a distance or 24 km, a man noticed that after walking for 1 hour and 40 minutes, the distance covered by him was \(5/7\) of the remaining distance. What was his speed in m/s?
A) 1.12
B) 1.21
C) 1.33
D) 1.55
E) 1.66

Weekly Quant Quiz #6 Question No 8



Good night!

I haven't been able to solve this but after one hour I need to ask you guys:

Where does the following come from?

D=5/7*(24-D)


Kind regards!
Intern
Intern
avatar
B
Joined: 09 Aug 2015
Posts: 5
Premium Member
While covering a distance or 24 km, a man noticed that after walking f  [#permalink]

Show Tags

New post 30 Jan 2019, 16:32
I am absolutely confused by the wording used in problem.
If 24 km distance is covered in 1 hour 40 mins.. then should speed be not as below for m/s
\(\frac{24*1000}{100*60}\)


please help me to understand the problem and solution
GMAT Club Bot
While covering a distance or 24 km, a man noticed that after walking f   [#permalink] 30 Jan 2019, 16:32
Display posts from previous: Sort by

While covering a distance or 24 km, a man noticed that after walking f

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


cron
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®.