Can You Solve Google's 2 Hourglass Interview Question?

Описание: Can you measure 9 minutes from hourglass timers of 4 minutes and 7 minutes? Think quick! This was an interview question at tech companies like Google, Microsoft and Amazon.

References
https://www.wired.com/story/want-to-w...
https://www.glassdoor.com/blog/guide/...
  / if_you_have_a_7minute_hourglass_and_an_11m...  

Help me make more videos! It literally costs thousands of dollars to run my website and pay for software to make videos, and your support matters. A monthly membership directly supports the channel and allows me to make more videos that inspire students and teachers around the world. You also get early access to videos and directly message me for video suggestions.

Support with a YouTube membership
   / @mindyourdecisions  
Support with a Patreon membership
  / mindyourdecisions  

Want to support with a tip or one-time donation? Every "coffee" powers me to make more videos. As they say, a mathematician is a machine for turning caffeine into theorems!
Send a tip on Ko-Fi
https://ko-fi.com/mindyourdecisions
Send a tip on PayPal
https://www.paypal.com/donate/?hosted...

Subscribe: https://www.youtube.com/user/MindYour...

Send me suggestions by email (address at end of many videos). I may not reply but I do consider all ideas!

If you purchase through these links, I may be compensated for purchases made on Amazon. As an Amazon Associate I earn from qualifying purchases. This does not affect the price you pay.

Book ratings are from January 2025.

My Books (worldwide links)
https://mindyourdecisions.com/blog/my...

My Books (US links)
Mind Your Decisions: Five Book Compilation
https://amzn.to/2pbJ4wR
A collection of 5 books:
"The Joy of Game Theory" rated 4.2/5 stars on 564 reviews
http://amzn.to/1uQvA20
"The Irrationality Illusion: How To Make Smart Decisions And Overcome Bias" rated 4.2/5 stars on 55 reviews
http://amzn.to/1o3FaAg
"40 Paradoxes in Logic, Probability, and Game Theory" rated 4.2/5 stars on 81 reviews
http://amzn.to/1LOCI4U
"The Best Mental Math Tricks" rated 4.3/5 stars on 148 reviews
http://amzn.to/18maAdo
"Multiply Numbers By Drawing Lines" rated 4.5/5 stars on 57 reviews
http://amzn.to/XRm7M4

Mind Your Puzzles: Collection Of Volumes 1 To 3
https://amzn.to/2mMdrJr
A collection of 3 books:
"Math Puzzles Volume 1" rated 4.4/5 stars on 138 reviews
http://amzn.to/1GhUUSH
"Math Puzzles Volume 2" rated 4.2/5 stars on 45 reviews
http://amzn.to/1NKbyCs
"Math Puzzles Volume 3" rated 4.3/5 stars on 38 reviews
http://amzn.to/1NKbGlp

2017 Shorty Awards Nominee. Mind Your Decisions was nominated in the STEM category (Science, Technology, Engineering, and Math) along with eventual winner Bill Nye; finalists Adam Savage, Dr. Sandra Lee, Simone Giertz, Tim Peake, Unbox Therapy; and other nominees Elon Musk, Gizmoslip, Hope Jahren, Life Noggin, and Nerdwriter.

My Blog
https://mindyourdecisions.com/blog/

Twitter
  / preshtalwalkar  

Instagram
  / preshtalwalkar  

Merch
https://teespring.com/stores/mind-you...

Patreon
  / mindyourdecisions  

Press
https://mindyourdecisions.com/blog/press