TS Police SI Mains 2018 Arithmetic and Reasoning

Instructions

In questions pick out the odd thing among the given items.

Question 110

21V23X, 13N15P, 9J11L, 5F7H

Solution

21-13 = 8
13-9 = 4
9-? = 2

? should be 7 i.e. the first number at the start of fourth term
Similarly
23-15 = 8
15-11 = 4
11-? = 2
? should be 9 i.e. the term at the center of fourth term

hence, fourth term in question is odd one out


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