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There are 2 women participants in a chess tournament . the number of men played between themselves exceeded by 52 the number of game they played with the women .if each player played one game with each other, find  the number of men in the tournament 

Rahul Ramesh , 14 Years ago
Grade 11
anser 1 Answers
AKASH GOYAL AskiitiansExpert-IITD

Last Activity: 14 Years ago

Dear Rahul

Let us assume no. of men =n

no. of games played between themselve =nC2

no. games men played with women=2n

According to question

nC2-2n=52

n*(n-1)/2-2n=52

n*n-5n-104=0

After solving

n=13 or -8

-8 is not possible

So no. of men =13

All the best

AKASH GOYAL
AskiitiansExpert-IITD

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