Dear experts, 5 boys and 3 girls are playing in a chess tournament. All boys have the same probability p of winning the tournament and all girls have the same probability q of winning. If p=2q, find the probability that. i) a boy wins the tournament. ii) a girl wins the tournament. Share with your friends Share 0 Nishima Pasricha answered this Selection of a boy can be done in C15 ways.Probability of winning a tournament for a boy is p.Selection of a girl can be done C13 ways.Probability of winning a tournament for a girl is q.Sum of all the probabilities is 1.Therefore, C15×p+ C13×q=1⇒5p+3q=1⇒10q+3q=1 ∵p=2q⇒13q=1⇒q=113⇒p=213(a) The probability of winning a boy=213(b) The probability of winning a boy=113 0 View Full Answer