The different routes are 479,001,600
How to determine the number of routes?
The number of cities is given as:
n = 12
The cities are different.
So, the number of routes is:
Routes = 12!
Expand
Routes =12 * 11 * 10 * 9 * ..... * 1
Evaluate
Routes =479,001,600
Hence, the different routes are 479,001,600
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