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

It is currently 23 Sep 2018, 03:32

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

If Sam is running on a circular track of radius 25 meters, with a spee

  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: 49309
If Sam is running on a circular track of radius 25 meters, with a spee  [#permalink]

Show Tags

New post 02 Sep 2018, 22:05
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

81% (00:56) correct 19% (01:51) wrong based on 57 sessions

HideShow timer Statistics

If Sam is running on a circular track of radius 25 meters, with a speed of 5 meters per second, how long will it take him to run 1.6 laps?


A. \(6\pi\)

B. \(8\pi\)

C. \(16\pi\)

D. \(25\pi\)

E. \(80\pi\)

_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


What are GMAT Club Tests?
Extra-hard Quant Tests with Brilliant Analytics

Senior Manager
Senior Manager
User avatar
S
Joined: 07 Oct 2017
Posts: 273
Re: If Sam is running on a circular track of radius 25 meters, with a spee  [#permalink]

Show Tags

New post 03 Sep 2018, 00:35
2
Bunuel wrote:
If Sam is running on a circular track of radius 25 meters, with a speed of 5 meters per second, how long will it take him to run 1.6 laps?


A. \(6\pi\)

B. \(8\pi\)

C. \(16\pi\)

D. \(25\pi\)

E. \(80\pi\)
Imho, answer is C
Attachment:
1535960211679.jpg
1535960211679.jpg [ 73.91 KiB | Viewed 470 times ]


Thank you = Kudos
_________________

Thank you =Kudos
The best thing in life lies on the other side of the pain.

Director
Director
User avatar
G
Joined: 20 Feb 2015
Posts: 733
Concentration: Strategy, General Management
Premium Member CAT Tests
If Sam is running on a circular track of radius 25 meters, with a spee  [#permalink]

Show Tags

New post 03 Sep 2018, 01:22
Bunuel wrote:
If Sam is running on a circular track of radius 25 meters, with a speed of 5 meters per second, how long will it take him to run 1.6 laps?


A. \(6\pi\)

B. \(8\pi\)

C. \(16\pi\)

D. \(25\pi\)

E. \(80\pi\)



distance = 1.6 ( circumfrence ) = 1.6(2*pi*25) = \(80\pi\)
time = \(80\pi\) /5 = \(16\pi\)
Target Test Prep Representative
User avatar
G
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 3515
Location: United States (CA)
Re: If Sam is running on a circular track of radius 25 meters, with a spee  [#permalink]

Show Tags

New post 11 Sep 2018, 17:15
Bunuel wrote:
If Sam is running on a circular track of radius 25 meters, with a speed of 5 meters per second, how long will it take him to run 1.6 laps?


A. \(6\pi\)

B. \(8\pi\)

C. \(16\pi\)

D. \(25\pi\)

E. \(80\pi\)


The circumference of the track is 50π, so 1.6 laps is 1.6 x 50π = 80π.

We’ll use the formula distance/rate = time to calculate the time it will take him to run 1.6 laps. Thus, it will take him 80π/5 = 16π seconds.

Answer: C
_________________

Scott Woodbury-Stewart
Founder and CEO

GMAT Quant Self-Study Course
500+ lessons 3000+ practice problems 800+ HD solutions

GMAT Club Bot
Re: If Sam is running on a circular track of radius 25 meters, with a spee &nbs [#permalink] 11 Sep 2018, 17:15
Display posts from previous: Sort by

If Sam is running on a circular track of radius 25 meters, with a spee

  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®.