Question

In a kabaddi championship, there were played 136 matches. Every team played one match with each other. The number of teams participating in the championship is ______ 

विकल्प

• 17

• 18

• 9

• 13

Answer 1

In a kabaddi championship, there were played 136 matches. Every team played one match with each other. The number of teams participating in the championship is 17.

Explanation:

`""^"n""C"_2 = 136`

⇒ `(n(n - 1))/2 = 136 ⇒ n = 17`