Can you solve the counterfeit coin riddle? - Jennifer Lu

https://www.youtube.com/watch?v=tE2dZLDJSjA

Activity, Puzzle, Publisher, TEDEd, Video, YouTube

You’re the realm’s greatest mathematician, but ever since you criticized the Emperor’s tax laws, you’ve been locked in the dungeon. Luckily for you, one of the Emperor’s governors has been convicted of paying his taxes with a counterfeit coin, which has made its way into the treasury. Can you earn your freedom by finding the fake?

10 January 2017 Edit: 9 January 2017