Kapil and Dharma are playing with two dice in a club and they have rolled them on the floor as given in the following figure. If x represents the number of dots on the faces opposite to that containing four dots, then find the value of x:

Logic: ​The Two Common Face rule in dice states that if two dice are shown with two common faces in the same relative position, then the remaining third face of both dice will be opposite to each other.

So, 2 will be opposite of 4.

Thus, the correct answer is (a).