Possible Tripeptide Chains: Calculating the Theoretical Combinations

[Ryan1983]

Homework Statement

A tripeptide chain consists of three amino acids, which can be distinguished as first, second and third. Each is one of 20 naturally occurring amino acids. How many tripeptide chains are theoretically possible?

Homework Equations

The Attempt at a Solution

would it simply be 20x20x20=8000?

 

[Bystander]

You got it.