Sign in
Please select an account to continue using cracku.in
↓ →
In a football tournament six teams A, B, C, D, E and F participated. Every pair of teams had exactly one match among them. For any team, a win fetches 2 points, a draw fetches 1 point, and a loss fetches no points. Both the teams E and F ended with less than 5 points. At the end of the tournament points table is as follows (some of the entries are not shown):
It is known that: (1) Team B defeated Team C, and (2) Team C defeated Team D.
The given table is
For any team, a win fetches 2 points, a draw fetches 1 point, and a loss fetches no points.
Team A scored 8 points and it played 5 matches.
So the only possibility is that A won 3 matches and 2 were draws. (3*2+2*1 = 8)
In all other cases, A will never score 8 points.
Similarly, for B it can score 6 points from 3 matches only when it has won all three matches, as B has lost 2 matches.
For C, the score is 5 points, and it lost 2 matches. It can be achieved if C wins 2 matches and draws 1 match.
The score for D is 5 points, and it lost 1 match, so it can be achieved if D wins 1 match and draws 3 matches.
Filling the table with wins and draws.
Now, it is given that both teams E and F ended with less than 5 points.
Team E has lost 1 match, if it had won 1 match and drawn the remaining 3 matches, the score would be 2*1+3*1 = 5
But, it has scored less than 5 points.
So, E has not won a match; all 4 matches were drawn and he obtained a total score of 4.
When six teams are playing and each team plays 1 match against another team, there will be $$^6C_2=15$$ matches.
Each match will result in two points to the winning team or, if it draws, 1 point to each team.
The sum of points of all teams will be equal to 15*2 = 30
8+6+5+5+4+F = 30
Therefore, points scored by team F = 2
F can either win 1 match and lose four matches, with zero draws.
Or F can lose three matches and draw two matches.
But no two teams can have zero draws.
So, F loses 3 matches and draws 2 matches.
The total points scored by F is equal to 2.
Create a FREE account and get: