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

It is currently 13 Dec 2019, 06:19

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

At a constant speed of 72 kilometers per hour, a vehicle travels

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

Hide Tags

Find Similar Topics 
Intern
Intern
avatar
B
Joined: 16 Oct 2017
Posts: 37
At a constant speed of 72 kilometers per hour, a vehicle travels  [#permalink]

Show Tags

New post 09 Feb 2018, 20:36
2
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

78% (01:04) correct 22% (01:08) wrong based on 129 sessions

HideShow timer Statistics

At a constant speed of 72 kilometers per hour, a vehicle travels how many kilometers per second?

A) 0.02
B) 0.2
C) 0.6
D) 1.2
E) 6.0
Intern
Intern
User avatar
B
Joined: 31 Dec 2017
Posts: 28
Concentration: Finance
GMAT ToolKit User
Re: At a constant speed of 72 kilometers per hour, a vehicle travels  [#permalink]

Show Tags

New post 09 Feb 2018, 21:03
OCDianaOC wrote:
At a constant speed of 72 kilometers per hour, a vehicle travels how many kilometers per second?

A) 0.02
B) 0.2
C) 0.6
D) 1.2
E) 6.0


72 kilometers in 60 mins, there are 60*60 = 3600 secs in 60 mins, so distance travelled in one second = 72/3600 = 2/100 = 0.02. (A).
Math Expert
avatar
V
Joined: 02 Aug 2009
Posts: 8309
Re: At a constant speed of 72 kilometers per hour, a vehicle travels  [#permalink]

Show Tags

New post 09 Feb 2018, 21:43
OCDianaOC wrote:
At a constant speed of 72 kilometers per hour, a vehicle travels how many kilometers per second?

A) 0.02
B) 0.2
C) 0.6
D) 1.2
E) 6.0



The number is in km per hour but answer asked is in km per second...
So 72 km per hour = \(\frac{72}{60*60}=\frac{72}{36*100}=\frac{2}{100}=0.02\)
A
_________________
Senior Manager
Senior Manager
User avatar
G
Joined: 31 May 2017
Posts: 334
GMAT ToolKit User Reviews Badge
Re: At a constant speed of 72 kilometers per hour, a vehicle travels  [#permalink]

Show Tags

New post 09 Feb 2018, 23:51
72 kilometers per hour translates to 72 kilometers in 3600 seconds.

Distance traveled per second = 72/3600 = 0.02

Ans: A
Current Student
User avatar
P
Joined: 07 Jan 2016
Posts: 1081
Location: India
GMAT 1: 710 Q49 V36
Reviews Badge
Re: At a constant speed of 72 kilometers per hour, a vehicle travels  [#permalink]

Show Tags

New post 10 Feb 2018, 00:21
72 kmph

in km/sec

convert hours into seconds
1 hr = 3600 seconds

72/3600

2/100

0.02
Intern
Intern
avatar
Joined: 31 Jan 2018
Posts: 16
Re: At a constant speed of 72 kilometers per hour, a vehicle travels  [#permalink]

Show Tags

New post 10 Feb 2018, 06:15
72 kilometers in 60 mins, there are 60*60 = 3600 secs in 60 mins, so distance travelled in one second = 72/3600 = 2/100 = 0.02.
So answer is A
EMPOWERgmat Instructor
User avatar
V
Status: GMAT Assassin/Co-Founder
Affiliations: EMPOWERgmat
Joined: 19 Dec 2014
Posts: 15716
Location: United States (CA)
GMAT 1: 800 Q51 V49
GRE 1: Q170 V170
Re: At a constant speed of 72 kilometers per hour, a vehicle travels  [#permalink]

Show Tags

New post 21 Oct 2018, 13:30
Hi All,

We're told that a vehicles travels at a constant speed of 72 kilometers per HOUR. We're asked what that speed is in kilometers per SECOND. This question is really just about 'unit conversions', although at a certain point you can use the 'spread' of the answer choices to your advantage and stop doing 'math.'

1 hour = 60 minutes
1 minute = 60 seconds
1 hour = (60)(60) = 3600 seconds

72 km/3600 seconds

Since 72/720 = .1, we know that 72/3600 is far LOWER than .1
There's only one answer that matches...

Final Answer:

GMAT assassins aren't born, they're made,
Rich
_________________
Contact Rich at: Rich.C@empowergmat.com
Image


The Course Used By GMAT Club Moderators To Earn 750+

souvik101990 Score: 760 Q50 V42 ★★★★★
ENGRTOMBA2018 Score: 750 Q49 V44 ★★★★★
Target Test Prep Representative
User avatar
V
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 8692
Location: United States (CA)
Re: At a constant speed of 72 kilometers per hour, a vehicle travels  [#permalink]

Show Tags

New post 25 Oct 2018, 09:29
OCDianaOC wrote:
At a constant speed of 72 kilometers per hour, a vehicle travels how many kilometers per second?

A) 0.02
B) 0.2
C) 0.6
D) 1.2
E) 6.0



Since 1 hour = 3600 seconds, 72 km/hour = 72/3600 = 1/50 = 0.02 km/second.

Answer: A
_________________

Scott Woodbury-Stewart

Founder and CEO

Scott@TargetTestPrep.com
TTP - Target Test Prep Logo
122 Reviews

5-star rated online GMAT quant
self study course

See why Target Test Prep is the top rated GMAT quant course on GMAT Club. Read Our Reviews

If you find one of my posts helpful, please take a moment to click on the "Kudos" button.

GMAT Club Bot
Re: At a constant speed of 72 kilometers per hour, a vehicle travels   [#permalink] 25 Oct 2018, 09:29
Display posts from previous: Sort by

At a constant speed of 72 kilometers per hour, a vehicle travels

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





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