Sample question
The sheet of paper shown in the figure (X) given on the left hand side, in each problem, is folded to form a box. Choose from amongst the alternatives (1), (2), (3) and (4), the boxes that are similar to the box that will be formed. Choose the box that is similar to the box formed from the given sheet of paper (X).
A. 1 only
B. 1, 2 and 3 only
C. 2 and 3 only
D. 1, 2, 3 and 4
E. 1 and 2 only
Solution
The fig. (X) is similar to the Form V. So, when the sheet in fig. (X) is folded to form a cube, then the face bearing a dot appears opposite to a blank face, the face bearing a ‘+’ sign appears opposite to another blank face and the face bearing a circle appears opposite to the third blank face. Clearly, all the four cubes shown in figures (1), (2), (3) and (4) can be formed. So option D.
