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

It is currently 21 Feb 2019, 01:53

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
  • Online GMAT boot camp for FREE

     February 21, 2019

     February 21, 2019

     10:00 PM PST

     11:00 PM PST

    Kick off your 2019 GMAT prep with a free 7-day boot camp that includes free online lessons, webinars, and a full GMAT course access. Limited for the first 99 registrants! Feb. 21st until the 27th.
  • 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

What is the number of 360-degree rotations that a bicycle wheel made

  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: 53060
What is the number of 360-degree rotations that a bicycle wheel made  [#permalink]

Show Tags

New post 06 Sep 2018, 23:49
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

86% (01:04) correct 14% (01:46) wrong based on 34 sessions

HideShow timer Statistics

What is the number of 360-degree rotations that a bicycle wheel made while rolling 150 meters in a straight line without slipping?

(1) The wheel made twenty 360-degree rotations per minute.
(2) The circumference of the bicycle wheel, including the tire, was 1 meter.

_________________

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

CEO
CEO
User avatar
P
Status: GMATINSIGHT Tutor
Joined: 08 Jul 2010
Posts: 2790
Location: India
GMAT: INSIGHT
Schools: Darden '21
WE: Education (Education)
Reviews Badge
Re: What is the number of 360-degree rotations that a bicycle wheel made  [#permalink]

Show Tags

New post 07 Sep 2018, 01:07
Bunuel wrote:
What is the number of 360-degree rotations that a bicycle wheel made while rolling 150 meters in a straight line without slipping?

(1) The wheel made twenty 360-degree rotations per minute.
(2) The circumference of the bicycle wheel, including the tire, was 1 meter.


Question : What is the number of 360-degree rotations that a bicycle wheel made while rolling 150 meters in a straight line without slipping?

CONCEPT: Distance travelled by a wheel = Distance travelled in one revolution * Number of revolution
and Distance travelled by wheel in one revolution = 2πr (Circumference of the wheel


hence, we need radius of wheel r and the distance travelled by wheel =150 meters

Statement 1: The wheel made twenty 360-degree rotations per minute

This is the rate of revolutions made in 1 minute but neither do we know the time for which wheel made the revolution nor the radius of the wheel hence
NOT SUFFICIENT

Statement 2: The circumference of the bicycle wheel, including the tire, was 1 meter.

Circumference = distance travelled in one revolution
hence number of revolutions = 150/1 = 150
SUFFICIENT

Answer: Option B
_________________

Prosper!!!
GMATinsight
Bhoopendra Singh and Dr.Sushma Jha
e-mail: info@GMATinsight.com I Call us : +91-9999687183 / 9891333772
Online One-on-One Skype based classes and Classroom Coaching in South and West Delhi
http://www.GMATinsight.com/testimonials.html

ACCESS FREE GMAT TESTS HERE:22 ONLINE FREE (FULL LENGTH) GMAT CAT (PRACTICE TESTS) LINK COLLECTION

Retired Moderator
User avatar
V
Status: Preparing for GMAT
Joined: 25 Nov 2015
Posts: 989
Location: India
GPA: 3.64
GMAT ToolKit User Premium Member Reviews Badge CAT Tests
What is the number of 360-degree rotations that a bicycle wheel made  [#permalink]

Show Tags

New post 08 Sep 2018, 11:14
Bunuel wrote:
What is the number of 360-degree rotations that a bicycle wheel made while rolling 150 meters in a straight line without slipping?

(1) The wheel made twenty 360-degree rotations per minute.
(2) The circumference of the bicycle wheel, including the tire, was 1 meter.


S1 - The wheel made twenty 360-degree rotations per minute
We don't know the time taken to cover 150m. Insufficient.

S2 - Circumference = 2πr = 1
No. of rotations = 150/1 = 150
Sufficient.
Answer B.
_________________

Please give kudos, if you like my post

When the going gets tough, the tough gets going...

GMAT Club Bot
What is the number of 360-degree rotations that a bicycle wheel made   [#permalink] 08 Sep 2018, 11:14
Display posts from previous: Sort by

What is the number of 360-degree rotations that a bicycle wheel made

  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®.