In such type of questions, clues are given regarding comparisons among a set of persons or things with respect to one or more qualities. The candidate is required to analyse the whole information, form a proper ascending / descending sequence and then answer the given questions accordingly.

(A) Gopal is shorter than Ashok but taller than Kunal;
(B) Navin is shorter than Kunal;
(C) Jayesh is taller than Navin;
(D) Ashok is taller than Jayesh.

Which of the given informations is not necessary to answer the above question ?

A. A
B. B
C. C
D. D
E. None of these
Answer: C . C


In terms of height, we have :
Gopal < Ashok,  Kunal < Gopal,  Navin < Kunal, Navin < Jayesh,  Jayesh < Ashok.
So the sequence becomes :
Navin < Kunal < Gopal < Jayesh < Ashok.

Clearly, statement C is not necessary.