There are 7 teams in a cricket tournament,every team has to play each other once, what is the total number of matches happened in a tournament

کرکٹ ٹورنامنٹ میں 7 ٹیمیں ہوتی ہیں، ہر ٹیم کو ایک بار ایک دوسرے سے کھیلنا ہوتا ہے، ٹورنامنٹ میں کل کتنے میچز ہوئے؟
Answer: 21
Explanation

To find the total number of matches in a round-robin tournament where each team plays every other team exactly once, you can use the formula:

Total Matches=×(1)2

Where

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