A series of figure are given, and these can be grouped into classes. Select from amongst the alternatives one set of group into which the figures can be classified ?

Options

A. (a) 2 4 7, 1 3 5, 6 8 9
B. (b) 1 5 7, 2 3 9, 4 6 8
C. (c) 4 3 2, 1 5 7, 6 8 9
D. (d) 2 4 5, 1 3 9, 6 7 8

Answer

B

Explanation

Figures 1, 5 and 7 Þ Two similar designs.
Figures 2, 3 and 9 Þ One complete and other incomplete design.
Figure 4. 6, and 8 Þ Each figure contains two lines crossing each other at right angle