Management Aptitude Test Sep 2011 Paper

Mathematical Skills

Question : 81 of 200

Marks: +1, -0

In a football championship, 153 matches were played. Every two teams played one match with each other. The number of teams, participating in the championship were

Validate

Solution:

(1 ) Let number of teams be n. Then ,

{n ( n - 1 )}/2

= 153
⇒ n ( n - 1 ) = 153 x 2
⇒ n ( n - 1 ) = 18 x 17
⇒ n = 18

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