Latest TCS Aptitude Question SOLUTION: A game is played betwn 2 players and one player is declared as winner. all the winners from first round are played in second round.all the winners from second round are played in t

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(#M40001079) TCS question Keep an EYE

A game is played betwn 2 players and one player is declared as winner. all the winners from first round are played in second round.all the winners from second round are played in third round and so on.if 8 rounds are played to declare only one players as winner, how many players are played in first round?

Asked In TCS Ragini (13 years ago)

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RISHI KUMAR  (13 years ago)

8th round=2 players
7th round=2*2=4
6 =4*2=8
5 =8*2=16
4 =16*2=32
3 =32*2=64
2 =64*2=128
1 =128*2=256 players
for this type of problems try to solve from last round

Is this solution Helpfull? Yes (18) | No   

Somil Nain  (13 years ago)

2^8=256

Is this solution Helpfull? Yes (7) | No   

suchandra raavi  (13 years ago)

ans: 256
Start from final round. For every round players double in a knockout game. So 8th round(final round)=2 players. Now 7th round double it=4 players. In that way calculate until 1st round. you get 256. or simply 2^n , n= no. of rounds. 2^8=256

Is this solution Helpfull? Yes (6) | No   

Abhishek Adhikari  (13 years ago)

rounds players playing winner
8 2 1
7 4 2
6 8 4
5 16 8
4 32 16
3 64 32
2 128 64
1 256 128

so total number of players played in first round is 256

Is this solution Helpfull? Yes (5) | No (3)  

sushil tripathi  (13 years ago)

at the starting the no. of player will be 2^8=256

Is this solution Helpfull? Yes (3) | No   

Ranvir Gupta  (13 years ago)

256->128->64->32->16->8->4->2

No of players is 256 in 1st round

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Shrishailam  (13 years ago)

Round No. of Players
8 1
7 2
6 4
5 8
4 16
3 32
2 64
1 128
answer=128

Is this solution Helpfull? Yes (3) | No (15)  

prakash  (13 years ago)

last round only 2 player
in second last " " 4=2^2 "
in 3rd last " " 8=2^3 "
.............................and so on
here total 8 round
hence 2^8 ans

Is this solution Helpfull? Yes (3) | No   

Amrit  (13 years ago)

256 player

Is this solution Helpfull? Yes (3) | No   

mahadev  (13 years ago)

sorry it's 256

Is this solution Helpfull? Yes (3) | No (1)  

Vatan Kumar Seth  (13 years ago)

8th round would have been played by 2 players to declare 1 as winner;
which implies ,,in 7th round 4 players played to declare 2 as winners;
6th round=>8 players
...
.
.
1st round=>256 players
so the soluton is=>256

Is this solution Helpfull? Yes (2) | No   

mahadev  (13 years ago)

2^8/2 =128

Is this solution Helpfull? Yes | No (13)  

subhojit som  (13 years ago)

128

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