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

Answer: Option D

Explanation:

1, 5 and 8 form a group of figures in which a circle and a triangle (divided into two equal parts) are present in contact with each other.
2, 4 and 7 contain figures which have curved portions.
3, 6 and 9 form a group of figures formed by straight lines only.