Middle – earth is a fictional land inhabited by Hobbits, Elves, dwarves and men. The Hobbits and the Elves are peaceful creatures who prefer slow, silent lives and appreciate nature and art. The dwarves and the men engage in physical games. The game is as follows . A tournol is one where out of the two teams that play a match, the one that loses get eliminated. The matches are played in different rounds where in every round , half of the teams get eliminated from the tournament. If there are 8 rounds played in a knock-out tournol how many matches were played?

a) 257 (b) 256 (c) 72 (d) 255

• ans is d)255
  1+2+4+8+16+32+64+128=255
  at final round play only one match.
  prev round play two matches
  like wise at 8th round the play 128 matches.so finally add all we got the answer
• 14 years agoHelpfull: Yes(89) No(1)
• 2^0+.....+2^7=255
• 14 years agoHelpfull: Yes(23) No(1)
• 8 rounds in total and each round half are eliminated. so the possible combinations are 2^8. The winner will be announced 1 match prior to the combination.. so the answer is 2^8-1=255
• 14 years agoHelpfull: Yes(15) No(2)
• in 8 round 2 person participate
  in 7 4
  in 6 8
  in 5 16
  in 4 32
  in 3 64
  in 2 128
  in 1 256
  (2^8= 256)
• 14 years agoHelpfull: Yes(6) No(50)
• answer is 256
• 14 years agoHelpfull: Yes(1) No(47)
• ans is (d)255
• 10 years agoHelpfull: Yes(0) No(1)