How Can You Identify the Counterfeit Coin Among 12 Using Only Three Weighings?

  • Thread starter Thread starter kant
  • Start date Start date
kant
Messages
388
Reaction score
0
You have 12 coins. one of the coin is a counterfeit of some unkown weight. The rest of the coins have identical weight. Use three tries in a pan balance to identify the counterfeit.
 
Physics news on Phys.org

Thread 'Today I Learned'

Every day we learn new things. Sometimes it's just a small fact or realization. No matter how trivial or random, let's start recording our daily lessons. Please start off with "Today I learned". Keep commentary to a minimum and just LIKE posts. I'll start! Today I learned that you clean up a white hat by spraying some cleaner with bleach on it (rinse before putting it back on your head!)
View full post »

Similar threads

How to Determine Counterfeit Coins with Only One Weighing
Replies
2
Views
2K
Can You Solve the False Coin Problem in 3 Weighs?
Replies
10
Views
2K
Solve Recreational Math: Identify Odd Weight Coin in 5 Weighs
Replies
8
Views
3K
What is the maximum number of bags that can be identified with 3 weighings?
Replies
29
Views
7K
Solve 8 Coin Riddle with 2 Weighings
Replies
3
Views
2K
Does Revealing a Real Coin Change Odds in the Modified Monty Hall Problem?
Replies
3
Views
3K
A math puzzle aimed at 9 to 12 year olds
Replies
11
Views
2K
12 coins and a balance beam scale
Replies
28
Views
21K
Coin weightings with two irregular coins
Replies
12
Views
4K
Solve the 12-Coin Problem with 3 Weighings
Replies
14
Views
9K

Hot Threads

Recent Insights

Back
Top