Teacher:In this task, you need to provide the correct option for a given problem on probability from the provided options.
Teacher: Now, understand the problem? Solve this instance: Problem: there are 10 pairs of socks and 2 socks are worn from that such that the pair of socks worn are not of the same pair . what is the number of pair that can be formed .
Options: a ) 90 , b ) 85 , c ) 75 , d ) 95 , e ) 82
Student:
a