BR Pascal's Principle Example

[FollowTheMoney]

---

Members don't see this ad.

Does anyone understand that example? I swear there has to be a typo in the numbers or something. If not, an explanation would be awesome! (Swimming Pool %) Thanks.

 

[FollowTheMoney]

Can anyone please help me with example 7.2a? Where did they get 3atm from? Also a mathematical explanation to example 7.2b would be great too! 😀