In a group of 50 patrons 16 patrons like lattes 12 patrons like espressos, and 8 patrons like both cofee drinks. how many patrons dont like either of the coffee drinks drinks?
If 8 like both, then 16-8 = 8 like only lattes, and 12-8=4 like only espressos. That makes 8 + 4 + 8 = 20 that like coffee drinks. The remaining 50-20 = 30 don't like either.
