60!/2!(60-2)!

Question

It has to do with probability and binomial probability

Answer 1

1740

the exclamation marks seem unesicery

Answer 2

60! / 2!(60-2)!=60! / 2!58!=1x2x3x....x57x58x59x60 / 2x(1x2x3x....x57x58)=59x60/2

=59x30=1770

The answer is: 60! / 2(60-2)!=1770