Question

A tournament where every team plays with every other team once and the number of matches is determined with the help of the formula N(N-1) is called as ______.

Options

• Knockout tournament

• double league tournament

• single league tournament

• none of these

Answer 1

A tournament where every team plays with every other team once and the number of matches is determined with the help of the formula N(N-1) is called as double league tournament.

Explanation:

In a double league (double round-robin) tournament, each pair of teams plays two matches with each other. The number of distinct pairs is `(N(N −  1))/2`; since each pair meets twice, total matches = `2 xx (N(N −  1))/2` = N(N − 1). (So the wording “once” in the question is likely a misprint; the formula fits double league.)