A lily pad doubles in size every day. If it covers the entire pond on day 30, on which day was the pond half-covered?

Q: A lily pad doubles in size every day. If it covers the entire pond on day 30, on which day was the pond half-covered?

Day 29.. If it doubles daily, the day before fully-covered must be half. Our intuition wants to say day 15 — that’s the trap of thinking linearly about exponential growth.

Question

Accepted Answer

Day 29. — If it doubles daily, the day before fully-covered must be half. Our intuition wants to say day 15 — that’s the trap of thinking linearly about exponential growth.