1.  Two positions of a cubical block are shown. When 5 is at the top which number will be at bottom?

 


A. 1
B. 2
C. 3
D. 4

Answer: Option C

Explanation:

In these 2 positions one common face with number 3, is in same position. Hence according to rule (3), 1 is opposite to 6 and 4 is opposite to 2. Therefore 5 is opposite to 3.