Friends, Brilliantians and members, lend me your ears

Discrete Mathematics Level 1

Sue was giving her TedX talk at UChicago. She knew that there were 300 seats in the auditorium, and counted 20 empty seats. How many people were in the audience?

Details and assumptions

Every person takes up 1 seat.

Sue is giving the talk, and is not in the audience.


Problem Loading...

Note Loading...

Set Loading...