The cafe has 16 chefs and 16 waiters. If 6 chefs and 3 waiters drop out, how many chefs and waiters are left?
There are 16 chefs - 6 chefs = <<16-6=10>>10 chefs left.
There are 16 waiters - 3 waiters = <<16-3=13>>13 waiters left.
In total there are 10 chefs + 13 waiters = <<10+13=23>>23 chefs and waiters left.
#### 23