Events & Promotions
|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Apr 2301:30 AM EDT
-02:30 AM EDT
Struggling with GMAT Verbal as a non-native speaker? Harsh improved his score from 595 to 695 in just 45 days—and scored a 99 %ile in Verbal (V88)! Learn how smart strategy, clarity, and guided prep helped him gain 100 points.
Apr 2308:00 PM PDT
-09:00 PM PDT
Video explanations + diagnosis of 10 weakest areas + 150+ short videos + study plan!
Apr 2212:30 AM EDT
-01:30 AM EDT
At one point, she believed GMAT wasn’t for her. After scoring 595, self-doubt crept in and she questioned her potential. But instead of quitting, she made the right strategic changes. The result? A remarkable comeback to 695. Check out how Saakshi did it.
Apr 2610:00 AM EDT
-11:00 AM EDT
The Target Test Prep course represents a quantum leap forward in GMAT preparation, a radical reinterpretation of the way that students should study. Try before you buy with a 5-day, full-access trial of the course for FREE!
Apr 2711:00 AM EDT
-12:00 PM EDT
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
12 Jan 2015, 11:15
Kudos
Bookmarks
A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
81% (01:00) correct
19%
(00:58)
wrong
based on 83
sessions
History
Date
Time
Result
Not Attempted Yet
What is the number of 360-degree rotations that Tashi’s unicycle wheel made while rolling 50 meters in a straight line without slipping?
(1) The diameter of the unicycle wheel, including the tire, was 0.25 meters.
(2) The unicycle wheel made ten 360-degree rotations per minute.
Kudos for a correct solution.
(1) The diameter of the unicycle wheel, including the tire, was 0.25 meters.
(2) The unicycle wheel made ten 360-degree rotations per minute.
Kudos for a correct solution.
12 Jan 2015, 11:39
Kudos
Bookmarks
The unicycle is rolling on a straight line of 60 meters, so if we knew the circumference of the wheel, we could calculate how often it has turned a full 360 degrees.
Statement 1: We get the diameter, so we can calculate the circumference and can answer the question. This is sufficient.
Statement 2: We get an information on the number of turns the wheel made per time, so that doesn't help us much.
Answer A.
Statement 1: We get the diameter, so we can calculate the circumference and can answer the question. This is sufficient.
Statement 2: We get an information on the number of turns the wheel made per time, so that doesn't help us much.
Answer A.
19 Jan 2015, 03:41
Kudos
Bookmarks
Bunuel
OFFICIAL SOLUTION:
To determine the number of 360-degree rotations (once around) that Tashi’s wheel turned in the 50 meters, you have to know the circumference of the circle in meters. Then you can divide 50 by the circumference to arrive at your answer. To determine the circumference, you need to know the radius, because C = 2πr.
The diameter is double the radius, so statement (1) gives you enough information to determine the radius and solve the problem. The first statement is sufficient, so the answer is either A or D.
The initial question provides no information on total time, so the number of rotations per minute doesn’t help solve the problem. Statement (2) is insufficient, so the answer can’t be D.
Choose A.
