Question 18
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 37 : 266,
37 $$\times$$ 7 + 7 = 259 + 7 = 266
In 53 : 378,
53 $$\times$$ 7 + 7 = 371 + 7 = 378
In 45 : 322,
45 $$\times$$ 7 + 7 = 315 + 7 = 322
In 43 : 318,
43 $$\times$$ 7 + 7 = 301 + 7 = 308
$$\therefore$$ The correct answer is option D.
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