there were 253 games played so that atleast two team from the group play
each other. Find out the maximum no of team?

• xC2=253
  X(x-1)/2*1=253
  X^2-X=506
  X^2-X-506=0
  (X+22) (X-23)=0
  X=-22,23
  So Maximum no of team is 23
• 4 years agoHelpfull: Yes(1) No(1)
• xc2=253
  x=23
• 3 years agoHelpfull: Yes(0) No(0)
• nc2=253
  on solving we get n=23
• 3 years agoHelpfull: Yes(0) No(0)
• nc3=253
  n(n-1)/2!=253
  n(n-1)/2(1)=253
  n(n-1)=253x2
  n(n-1)=506
  n^2-n-506=0
  n=23 ,-22
  maximum (n) is 23
• 2 years agoHelpfull: Yes(0) No(0)