Ways

There are 3 different roads from Lehota to Hradec and 4 different roads from Hradec to Buda. Determine the number of ways in which it is possible to choose the route from Lehota via Hradec to Buda and back so that no road is used twice.

Correct answer:

n =  72

Step-by-step explanation:

n1=3 4=12 n2=(41) (31)=6  n=n1 n2=12 6=72



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