## Puzzle 26: Three Slices of Toast

You are making some tasty toast in a small pan. The toaster is not available, plus you know toast tastes better to be buttered first and then toast. After toasting one side of a slice of bread, it will need to be turned over. Each side takes 30 seconds to toast. The pan can only hold 2 slices of bread at a time.

How can you toast both sides of 3 slices of bread in 1.5 minutes?

Extension: What about 5 slices of bread? 7 slices? 9 slices? Can you see the pattern and come up with a general formula to calculate the cooking time?

How can you toast both sides of 3 slices of bread in 1.5 minutes?

Extension: What about 5 slices of bread? 7 slices? 9 slices? Can you see the pattern and come up with a general formula to calculate the cooking time?