Answer: 792
Step-by-step explanation:
Given : Hugo and Viviana work in an office with ten other coworkers.
Out of these 12 workers, their boss needs to choose a group of five to work together on a project.
The combination of n thing taking m at a time is given by :-
[tex]C(n;m)=\dfrac{n!}{m!(n-m)!}[/tex]
Then, the number of different working groups of five the boss can choose :-
[tex]C(12;5)=\dfrac{12!}{5!(12-5)!}\\\\=792[/tex]
Hence, the number of different working groups of five the boss can choose = 792.