In a chess tournament, a player gets one point for every game won, $\frac{1}{2}$ point for a draw and 0 point for a loss. A grandmaster played 11 games without losing and scored 9 points. How many games did he win?

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Solution

The correct option is C
7

C

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two players A and B play a series of games of chess. The winning players in any games gets 1 points while the losing plays get 0 points. The player who achievers 4 point first , wins the series. If no game ends in draw, find the Number of ways in which the series is can be won by A

Q. Football teams

T_{1}

and

T_{2}

have to play two games against each other. It is assumed that the outcomes of the two games are independent. The probabilities of

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are

\frac{1}{2}, \frac{1}{6}

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3

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1

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T_{1}

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Football teams $T_{1}$ and $T_{2}$ have to play two games against each other. It is assumed that the outcomes of the two games are independent. The probabilities of $T_{1}$ winning, drawing and losing a game against $T_{2}$ are $\frac{1}{2}, \frac{1}{6}$ and $\frac{1}{3}$ , respectively. Each team gets 3 points for a win, 1 point for a draw and 0 points for a loss in a game. Let $X$ and $Y$ denote the total points scored by teams $T_{1}$ and $T_{2}$ , respectively, after two games.

$P (X = Y)$ is

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In a chess tournament, a player gets one point for every game won, 12 point for a draw and 0 point for a loss. A grandmaster played 11 games without losing and scored 9 points. How many games did he win?

The correct option is C 7 C

In a chess tournament, a player gets one point for every game won, $\frac{1}{2}$ point for a draw and 0 point for a loss. A grandmaster played 11 games without losing and scored 9 points. How many games did he win?

The correct option is C
7

C