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Number analogy section deals with two types of questions:
I. Choosing a similarly related pair as the given number pair on the basis of the relation between the numbers in each pair.
II. Choosing a number similar to a group of numbers on the basis of certain common properties that they possess.

121 : 12 : : 25 : ?

Option:
A. 1
B. 2
C. 6
D. 7
Answer: C . 6

Justification: The relationship is x2 : (x + 1).

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