Tag: math & puzzles

Questions Related to math & puzzles

  1. 14

  2. 15

  3. 16

  4. 45


Correct Option: A
Explanation:

To determine the number of teams that participated in the football matches, we can use the formula for the number of matches played in a round-robin tournament.

The formula to calculate the number of matches in a round-robin tournament with "n" teams is:

matches = (n * (n - 1)) / 2

Given that 91 matches were played, we can set up the equation:

91 = (n * (n - 1)) / 2

To solve the equation, we can multiply both sides by 2 to eliminate the fraction:

182 = n * (n - 1)

Now, we can try different values for "n" to see which one satisfies the equation:

For n = 14: 182 = 14 * (14 - 1) 182 = 14 * 13 182 = 182

Since n = 14 satisfies the equation, the correct answer is:

A. 14