self Maths Puzzle

in how many ways can 12 different things be divided equally among three persons?

in how many ways can 12 things be divided in three sets, having 4 things each?
the answer for these 2 questions is different.i am not able to understand what's the difference between these 2 questions..pls also explain the answers.

Read Solution (Total 2)

self Other Question

how many different words of 4 letters can be formed with the letters of the word "EXAMINATION" ? the number of straight lines that can be dranw out of 10 points of which 7 are collinear?

pls explain the answers for all these questions..