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In chess tournament where the participants were to play one game with another, two players fell ill having played 3 games each. If the total number of games played is 84,the number of participants at the beginning was

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answer is C.

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Detailed Solution

Let n be the no of participants excluding the two particular persons who felt ill

$\Rightarrow^{n} c_{2} = 84 - (3 + 3)$

$\Rightarrow^{n} c_{2} = 78 \Rightarrow n = 13$

Total no of participants $= 13 + 2$

$= 15$

Then the number of participants at the beginning was 15

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