An old-fashioned toaster will toast
two slices of bread at once, but it
can only toast one side of each slice
of bread at a time. You like each side
toasted for exactly one minute. How
can you toast three slices of bread in
three minutes?
Call the three slices of bread A, B, and C.
1. During the first minute, toast one side
of A and one side of B.
2. During the second minute, toast the other
side of A and one side of C.
3. During the third minute, toast the other
side of B and the other side of C.
Edwin