Dulikovci 56311

Dulikovci, Elikovci, Filikovci, and Galikovci visited each other often last month. Each family visited each family exactly once. How many visits did all four families make together? If two families came to visit one family simultaneously, count it twice.

Correct answer:

n =  12

Step-by-step explanation:

n=3 4=12



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