एक लीग में (9) टीमें हैं और हर दो टीमों के बीच (2) मैच खेले जाते हैं। कुल मैच कितने होंगे?
A league has (9) teams and (2) matches are played between every pair of teams. How many matches will be played?
Explanation opens after your attempt
B. (72)
Concept
The pairs of teams are \(\binom{9}{2}=36\). With (2) matches for each pair the total is (72).
Why this answer is correct
The correct answer is B. (72). The pairs of teams are \(\binom{9}{2}=36\). With (2) matches for each pair the total is (72).
Exam Tip
टीमों की जोड़ियां \(\binom{9}{2}=36\) हैं। हर जोड़ी के (2) मैच होने से कुल (72) मैच होंगे।
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