Honkai Star Rail is a new space fantasy RPG by the creators of Genshin Impact.
Ride the Astral Express and discover the galaxy’s infinite wonders filled with thrills and adventures.
Meet new friends around the world and even run into some familiar faces.
Explore the universe’s wonders like a space station, a planet with eternal winter, a starship, and more.
The game has high-quality cinematics, innovative facial expressions, and an original score.
Go on an adventure with new friends and reimagine tactical combat using a brand-new command combat system.
Honkai Star Rail Ministry of Education Quiz Part 8 Answer
Question: The Belobog Academy has discovered a new, invasive species of algae that can double itself in just one day, and in 30 days fills a whole reservoir — contaminating the water supply. How many days would it take for the algae to fill half the reservoir?
Answer: 29 days.
Explanation: The algae doubles itself every day and filled a whole reservoir in 30 days.
Hence, on the 29th day, the algae would be enough to double itself on the 30th day to fill the whole reservoir.
Let’s say that it takes 200 mg/L of algae to fill the whole reservoir.
If so, the 28th day = 50 mg/L, 29th day = 100 mg/L (half filled), and 30th day = 200 mg/L (fully filled).