---
title: "Which bottle fill first?"
url: https://egloos.com/en/playbrain/17850
channel: "PlayBrain"
channel_url: https://egloos.com/en/playbrain
category: "Quizzes"
language: en
published: 2026-06-18T19:53:30
updated: 2026-06-18T19:53:30
---

# Which bottle fill first?

![](https://static.egloos.com/content/images/body/20260618/20260618195300_image.png)

**Time for a physics test! 💧 Only those with sharp eyes and logical minds get this right on the first try! 👇**

Take a close look at the plumbing system in image\_edfe6a.png. The faucet is turned on, and water is pouring straight into bottle 1.

Which of the numbered bottles do you think will be completely full first? **1, 2, 3, 4, or 5?** 🧐

Don't let the complicated side pipes distract you. The secret to solving this lies at the very bottom of the first container!

**Here is the official solution:** Look at the very bottom of **Bottle #1**. There is an open, vertical pipe leading directly down into **Bottle #3**. Because of gravity, water won't accumulate in bottle 1 or spill over into the side branches until the bottom container is completely overflowing.

Since bottle 3 is at the lowest point and gets all the water first, **Bottle 3** is the winner! 🎯

Did you spot the bottom drain immediately, or did you guess a different number? Drop your answer in the comments and share this to challenge your friends' logic skills! 🧠✨

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Copyright of this article belongs to Egloos and its author, [PlayBrain](https://egloos.com/en/playbrain).