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.
May 2008:00 AM PDT
-08:30 AM PDT
What’s in it for you- Live Profile Evaluation Chat Session with Jenifer Turtschanow, CEO, ARINGO. Come with your details prepared and ARINGO will share insights! Pre-MBA Role/Industry, YOE, Exam Score, C/GPA, ECs Post-MBA Role/ Industry & School List.
Jun 1006:00 AM PDT
-06:15 PM PDT
Register for the GMAT Club Virtual MBA Spotlight Fair – the world’s premier event for serious MBA candidates. This is your chance to hear directly from Admissions Directors at nearly every Top 30 MBA program..
28 Jan 2015, 10:07
Kudos
Bookmarks
A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
58% (01:41) correct
42%
(01:49)
wrong
based on 248
sessions
History
Date
Time
Result
Not Attempted Yet
A cube is painted red on all faces. It is then cut into 27 equal smaller cubes. How many cubes are painted on only 2 faces?
A. 12
B. 8
C. 6
D. 10
E. 16
A. 12
B. 8
C. 6
D. 10
E. 16
28 Jan 2015, 13:05
Kudos
Bookmarks
Hi Salvetor,
I'm going to give you a couple of hints so that you can try this question again:
1) Draw a simple cube
2) Draw 9 squares on each face of the cube (so that it looks like a Rubik's Cube) - this is what the cube will look like when it's cut into 27 equal smaller cubes.
3) Remember that the OUTSIDE of the cube is the part that's painted....
While the question asks for the number of min-cubes that have paint on 2 sides, here's a critical thinking exercise (you can use the drawing to help you; remember that the cube has 6 sides and you're not allowed to count a min-cube more than once):
Which of the 27 mini-cubes have paint on just 1 side?
Which of the 27 mini-cubes have paint on 2 sides?
Which of the 27 mini-cubes have paint on 3 sides?
Final Answer
GMAT assassins aren't born, they're made,
Rich
I'm going to give you a couple of hints so that you can try this question again:
1) Draw a simple cube
2) Draw 9 squares on each face of the cube (so that it looks like a Rubik's Cube) - this is what the cube will look like when it's cut into 27 equal smaller cubes.
3) Remember that the OUTSIDE of the cube is the part that's painted....
While the question asks for the number of min-cubes that have paint on 2 sides, here's a critical thinking exercise (you can use the drawing to help you; remember that the cube has 6 sides and you're not allowed to count a min-cube more than once):
Which of the 27 mini-cubes have paint on just 1 side?
Which of the 27 mini-cubes have paint on 2 sides?
Which of the 27 mini-cubes have paint on 3 sides?
Final Answer
The mini-cubes with 2 painted sides are ALL on the edge of the cube, in the "middle" of the edge. There are 4 in front, 4 in back and 4 more on the "strip" that runs around the left/top/right/bottom of the cube. 4 + 4 + 4 = 12. Answer A
GMAT assassins aren't born, they're made,
Rich
