Four number-pairs have been given, out o

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Target Exam

CUET

Subject

General Test

Chapter

General Ability

Topic

Odd One Out/Classification

Question:

Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the one that is different.

Options:

17 : 291

15 : 227

13 : 169

11 : 123

Correct Answer:

13 : 169

Explanation:

The logic is :

(Ist number)² + 2 = second number

17 : 291 - (17)² + 2 = 291

15 : 227 - (15)² + 2 = 227

13 : 169 - (13)² = 169 (odd)

11 : 123 - (11)² + 2 = 123