How to Play Chess - Explained in A Minute #shorts

In a chess tournament each of six players will play every other player exactly once. How many matches will be played during the tournament?

83. 60% in a class of 80 students Students play Carrom, 45% play Chess And 10% of the students do not play carrom and 1 d: Neither chess. Chess players only Ans. Number of students is

Out of 40 children , 30 can swim,27 can play chess and 5 can do neither. How many children can swim only?