Question

Group the following figures into three classes on the basic of identical properties:

• A. 1, 3, 9 ; 2, 5, 8, 4, 6, 7
• B. 4, 8, 9 ; 1, 2, 5 ; 3, 6, 7
• C. 2, 5, 9 ; 1,3, 8, 2, 6, 7
• D. 1, 8, 9 ; 4, 6, 7 ; 2, 3, 5

Answer 1

The correct option is D 1, 8, 9 ; 4, 6, 7 ; 2, 3, 5

1, 8, 9 are figures bisected by a straight line 4, 6, 7 are figures having an extended arm 2, 3, 5 are figures intersected by a line Thus the given figure containing nine figures may be divided into three pairs : (1, 8, 9), (4, 6, 7) and (2, 3, 5) Hence the answer is (4).