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, 7, 8), (2, 5, 6), (3, 4, 9)
B. (1, 8, 9), (2, 3, 5), (4, 6, 7)
C. (2, 3, 5), (1, 7, 8), (4, 6, 9)
D. (2, 6, 7), (1, 3, 4), (5, 8, 9)

Answer: Option B

Explanation:

1, 8 and 9 form a group of figures in which two shaded circles are present.
2, 3 and 5 form a group of figures in which one shaded circle is present.
4, 6 and 7 form a group of figures in which three shaded circle are present.