This typesThis type consists of questions in which certain items belonging to different groups or possessing different qualities are given along with f

Ravi is not wearing white and Ajay is not wearing blue.
Ravi and Sohan wear different colours.
Sachin alone wear red.

What is Sohan's colour, if all four of them are wearing different colours ? 

A. Red
B. Blue
C. White
D. Can't say
Answer: D . Can't say


The fourth colour and some more information are required.