How many cubes have 2 blue faces?
Geometry
Level
1
A wood of block measuring 5 in. by 6 in. by 7 in. is painted blue. It is then completely cut to cubes which measure 1 in. on an edge. How many cubes have 2 blue faces?
50
28
48
30
62
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
The cubes with 2 blue faces are those at the edges except the corner cubes. Therefore, there are
4
(
4
+
3
+
5
)
=
4
8
cubes.
