131. The Tennis TournamentA singles tennis tournament is held in which 30 men participate. If a player is eliminated as soon as he loses a match, how many matches are required to determine the winner? 132. Dividing the Load Equally On my return of India, after an extensive tour of America, I waited for the […]
121. The ‘Mixed Double’Four married couples played a tennis tournament of ‘mixed doubles’. A man and a woman always played against a man and a woman. However, no person ever played with or against any other person more than once. They all played together in two courts on three successive days.Can you show how they […]
111. Up the Stream-Down the StreamWhile up stream, a crew can row a boat in eight and four-sevenths minutes. But if there was no stream they could row it in seven minutes less than it takes them to drift down the stream.Can you say how long it would take them to row down with […]
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