UP Police Constable Exam Model Paper 4

Question : 59 of 150

Marks: +1, -0

Four pairs of numbers have been given, out of which three are alike in some manner, while one is different. Choose out the odd one.

Solution:

The pattern followed is,
Option 1 → 17 : 306 → 17 : 17

^2

+ 17
Option 2 → 21 : 420 → 21 : 21

^2

- 21
Option 3 → 13 : 182 → 13 : 13

^2

+ 13
Option 4 → 19 : 380 → 19 : 19

^2

+ 19
All follow the same pattern, except ’21 : 420’.
Hence, ’21 : 420’ is the correct answer.

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