Study the 2 different positions of a cube given below with dots from 1 to 6 marked on its faces. Find out how many dots are contained on the face opposite to that containing 4 dots.

On the basis of following pattern in given dices , we can say that
2, 4, 1 and 3 are adjacent to 5.
So 6 will be opposite to 5.
Now keeping position of 5 stable in both figures respectively.
4, 2 and 3 are in same order, hence 3 will be opposite to 4.