1.

Use each of the following figures only once and form three groups. The three groups thus formed are:

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


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