Question:
In a volleyball tournament, each of six teams will play every other team exactly once. How many matches will be played during the tournament?
A6
B12
C15
D17
Answer:
C. 15
Explanation:
No. of matches = 6!/2!(6-2)!= (1x2x3x4x5x6)/ (1x2x1x2x3 x4) = 15