Brain Teasers Optical Illusions Puzzle Hunts Codes & Ciphers Mechanical Puzzles
Personal Links
Browse Teasers
Search Teasers

Clean Those Windows!

Trick brain teasers appear difficult at first, but they have a trick that makes them really easy.

 

Puzzle ID:#44988
Fun:*** (2.48)
Difficulty:** (1.12)
Category:Trick
Submitted By:LoofreA****!

 

 

 



A girl has been assigned to window cleaning for the day. She has to clean three windows, all different sizes. However, the girl is very pale and burns easily, so she wants to decide which SPF factor to use. She begins cleaning at 12:00 in the morning and can clean 1 square metre in 1 minute. The first window is 10' by 10', the second 9' by 16', and the third 9' by 20'. Assuming that any SPF sunscreen is available, which one should she buy?




What Next?

  
  

See another brain teaser just like this one...

Or, just get a random brain teaser

If you become a registered user you can vote on this brain teaser, keep track of
which ones you have seen, and even make your own.

 






Back to Top
   


Online Now
8 users and 705 guests

Users In Chat
Aviator
Follow Braingle!
Tap into all 20,000+ of our brain teasers, riddles and puzzles on your iPhone or iPad.

Braingle in the iTunes App Store
Copyright © 1999-2017 | FAQ | Widgets | Links | Green | Subscribe | Contact | Privacy | Conditions | Advertise | Braingle Time: 2:26 pm
Sign In Create a free account