In a hockey championship, there are 153 matches played. Every two team played one match with each other. The number of teams participating in the championship is:
A. 18
B. 19
C. 17
D. 16
Answer: Option A
Solution(By Examveda Team)
Let there were x teams participating in the games, then total number of matches, = nC2 = 153 On solving we get, n = −17 and n = 18 It cannot be negative so n = 18Related Questions on Permutation and Combination
A. 3! 4! 8! 4!
B. 3! 8!
C. 4! 4!
D. 8! 4! 4!
A. 7560,60,1680
B. 7890,120,650
C. 7650,200,4444
D. None of these
A. 8 × 9!
B. 8 × 8!
C. 7 × 9!
D. 9 × 8!
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