Two positions of a block are shown below (i) and (ii).

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Two positions of a block are shown below (i) and (ii). When 2 dots is at the bottom which number of dots will be at the top?

1. 3
2. 5
3. 6
4. cannot be determine

Correct Option: A

Number 1 is common to both the figures (i) and (ii). The dice in fig. (ii) is assumed to be rotated so that 1 dot moves to the top face i.e to the same position as in figure (i) and 2 and 4 dots move to the face behind the faces with 3 and 5 dots respectively. Clearly by combination, 3 dots lie on the face opposite the face having 2 dots. Therefore, when there are 2 dots at the bottom, the number of dots at the top will be 3.