Question 8 of the Ministry of Education’s puzzle is very difficult. Many players don’t know what the correct answer is. The editor below has brought you the answer to question 8. Players who still don’t know the answer can take a look below. Let’s analyze it, I hope it will be helpful to everyone.
Answer: [Day 29].
1. In the question, you can get algae, which can double every day, and it will be full in thirty days;
2. So if you want to completely occupy the pool on the 30th day, you must occupy half of it on the 29th day. In fact, it is a simple logical problem, which can be proved by reverse reasoning.