Question 8
Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different from the rest.
Solution
In 39 - 72,
3 + 9 = 12
12 $$\times$$ 6 = 72
In 28 - 60,
2 + 8 = 10
10 $$\times$$ 6 = 60
In 42 - 36,
4 + 2 = 6
6 $$\times$$ 6 = 36
In 57 - 38,
5 + 7 = 12
12 $$\times$$ 6 = 72
$$\therefore$$ The correct answer is option D.
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