We are given that car dealership employed 4 mechanics. and 20 cars came there.
That means each employee should handle
Which means we need to choose 5 cars from 20 cars first . For that we need to use combinations since order in which car is given to mechanic does not matter.
Hence number of ways = = = 15504 ways of allocating.
answer: no, but if it does it's a obvious pattern.
throw the computer