1. 

Group the given figures into different classes on the basis of their orientation, shape etc.

grouping-of-figures-non-verbal-reasoning-introduction---grouping-of-figures-problems
A. (1, 5, 7), (2, 3, 8), (4, 6, 9)
B. (3, 7, 6), (1, 8, 4), (2, 5, 9)
C. (1, 4, 9), (2, 5, 6), (3, 7, 8)
D. (1, 2, 6), (3, 4, 5), (7, 8, 9)

Answer: Option B

Explanation:

3, 7 and 6 form a group of figures which are divided into three unequal parts.
1, 8 and 4 form a group of figures which are divided into three equal parts.
2, 5 and 9 form a group of figures in which the figures are divided into three parts in such a way that one part is half and the other two parts are one-fourth of the original figure.