# Brain Teaser Logic Test: Can You Guess How Full Is The Bottle

by N Keerthana | **Updated **Jan 13, 2023

## Brain Teaser Logic Test: Can You Guess How Full Is The Bottle

Brain teasers are exciting puzzle that needs thinking to solve. Brain teasers make you think outside the box and exploit your mind's potential. One of the most recent brain teasers on social media and boggling many minds is Can You Solve This Unsolvable Brain Teaser Puzzle And Find The Missing Number?

Let us first have a look at what this puzzle is.

Image source: Youtube

## Brain Teaser Logic Test: Can You Guess How Full Is The Bottle- Solution

If you are still trying to get the answer to this, we have the answer to this puzzle. This brain teaser is a great way to test your observation skills and how sharp you are. If you still haven't gotten the answer, the picture given below will make you understand this solution better.

At first, it seemed impossible to solve because we did not know the cylindrical base's radius nor the volume of the irregularly shaped top of the bottle.

The key insight is the amount of air in both bottles is the same.

Since the water level is 15 cm in the second bottle, the air is 21 – 15 = 6 cm, and that is completely contained within the cylindrical body of the bottle.

So now imagine a completely cylindrical bottle. We know it would be 12 cm of water and 6 cm of air.

The height of the bottle is 12 + 6 = 18. The fraction that is water is therefore 12/18 =

**2/3,**and that’s the answer!

Image source: Youtube

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## Brain Teaser Logic Test: Can You Guess How Full Is The Bottle?-FAQ

A brain teaser is an exciting form of a puzzle that needs thinking to solve.

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