Grouping of Images - Verbal and Reasoning

Directions to SolveIn each of the following questions, group the given figures into three classes using each figure only once.
Q1:

Group the given figures into three classes using each figure only once.

A 1,2,5 ; 3,7,8 ; 4,6,9

B 1,7,2 ; 3,9,6 ; 4,5,8

C 2,3,8 ; 4,6,9 ; 1,5,7

D 5,6,9 ; 3,4,1 ; 2,7,8

ANS:A - 1,2,5 ; 3,7,8 ; 4,6,9

Explanation: 1, 2, 5 are figures that have patterns formed from four lines curved in a concave direction. 3, 7, 8 are figures that have patterns formed from four lines curved in a convex direction. 4, 6, 9 are figures that have patterns formed from these straight lines.