wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

How many smaller cubes have three of their faces painted red?
340532.jpg

A
64
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
4
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
12
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
8
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
E
None of these
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is D 8
Here n = 3.
Therefore, number of cubes with 3 sides painted red = Number of corner cubes = 8.
Number of cubes with 2 faces painted = (n2)×12=(32)×12=12.
Number of cubes with 1 face painted = (n2)2×6=(32)2×6=6.
Number of cubes with no face painted = (n2)3=(32)3=1

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Shortest Distance between Two Skew Lines
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon