A total of 520 players participated in a single tennis knock out tournament. What is the total number of matches played in the tournament? (Knockout means if a player loses, he is out of the tournament). No match ends in a tie.  Choices
A) 511	B) 519	C) 256	D) 255	E) 1023

Rationale: there are 520 players , only 1 person wins , 519 players lose . in order to lose , you must have lost a game . 519 games . ans - b
Answer: B