23. Patch of Lily Pads
Question: In a lake, there is a patch of lily pads. Every day, the patch doubles in size. If it takes 48 days for the patch to cover the entire lake, how long would it take for the patch to cover half of the lake? _____ days
Pixabay/ Public Domain
Answer: Every day FORWARD the patch doubles in size. So every day BACKWARDS means the patch halves in size. So on day 47, the lake is half full.
