Why different colour pens for different people?You may find it funny but I am trying to get the answer to this question when I was in ninth standard but nobody could give me a satisfactory answer. So I thought I should share it here may be I could get a better reply.
Many a times I noticed that only a particular colour of pen is being used by a particular category of people. For students are advised to use blue coloured pens, red colour is given to teachers for checking the copies of students. Principal of a particular school is advised to use green coloured pen. Chairman and other chair persons often use black coloured pens.
I wonder why this particular distinction is created for different category people. Is there any particular reason for this or some myths or something like that related to this?
Can you people provide me with a better explanation for this.