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English and Logical Reasoning Prep Guide
Exam
English and Logical Reasoning Prep Guide
Subject
Logical Reasoning
Chapter
Classification

English and Logical Reasoning Prep Guide · Logical Reasoning · Classification

Four of the following five are alike in a certain way and so form a...

Four of the following five are alike in a certain way and so form a group. Which one of the following is different from the group?

Options

  1. A226
  2. B290
  3. C360
  4. D170

Correct answer

C. 360

Step-by-step solution

After a close look you will get that except 360 each number is one more than square of a natural number, ie 226=152+1;290=172+1;170=132+1;122=112+1\begin{aligned} & 226=15^2+1 ; \quad 290=17^2+1 ; 170=13^2+1 ; \\ & 122=11^2+1 \end{aligned}
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