Three different positions of the same dice are shown. Find the number on the face opposite the face showing '1'.

3

Step 1) In figure Ist and IIIrd, 1 is common

Step 2) The number ‘1’ is common in both the dice, but it is at a different position. In order to find out, the number appearing on the opposite face, rotate the dice in a clockwise direction with the common number as the reference.

Step 3)

     1  5  6

     1  2  4

Step 4)

5 is opposite to 2 and 6 is opposite to 4

Therefore,

1 will be opposite to 3