Two different positions of the same dice are shown, the six faces of which are numbered from 1 to 6. Select the number that will be on the face opposite to the one having '4'?

3

Step 1) In figure Ist and IInd, 2 is common

Step 2) The number ‘3’ 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)  3     1     2

              3      5    6

Step 4)   1  is opposite to 5

               2  is  opposite  to 6

Therefore ,

              3 will be opposite to 4