SOLUTION: How many things could i code with four colors of paper clips by using THREE paper clips for each code? e.g. colors = A B C D 1. A A A 2. A A B 3. A A C It can also go back

Question 257362: How many things could i code with four colors of paper clips by using THREE paper clips for each code? e.g.
colors = A B C D
1. A A A
2. A A B
3. A A C
It can also go backwards like B A A or C A A (Practicing coding for DNA with three bases instead of four!)
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
How many things could i code with four colors of paper clips by using THREE paper clips for each code? e.g.
colors = A B C D
1. A A A
2. A A B
3. A A C
It can also go backwards like B A A or C A A (Practicing coding for DNA with three bases instead of four!)
-------------------
Pick the 1st clip: 4 ways
Pick the 2nd clip: 4 ways
Pick the 3rd clip: 4 ways
-------
Ans: # of coded "words" would be 4^3 = 64
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Cheers,
Stan H.
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