How many smaller cubes will have only two faces colored?
Explanation:
Exactly two faces colored will come from edges. 4 edges of blue and red with 3 cubes from each edge, i.e., total 4 × 3 = 12 cubes. 4 edges of red and yellow with 1 cube from each edge, i.e., total 4 × 1 = 4 cubes. 4 edges of yellow and blue with 2 cubes from each edge, i.e., total 4 × 2 = 8 cubes.
∴ Total = 12 + 4 + 8 = 24 cubes will have exactly two faces colored.
Hence, option (b).
» Your doubt will be displayed only after approval.
Help us build a Free and Comprehensive Preparation portal for various competitive exams by providing us your valuable feedback about Apti4All and how it can be improved.