IF THRE ARE 4 GIRLS IN ROOM SONALI IS PLAYING CRICKET SHIVANI IS WATCHING TV AND KOMAL IS SLEEPING WHAT IS FORTH GIRL DOI RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

1/3

This is a famous question in understanding conditional probability, which simply means that given some information you might be able to get a better estimate.

The following are possible combinations of two children that form a sample space in any earthly family:

Boy - Girl
Girl - Boy
Boy - Boy
Girl - Girl

Since we know one of the children is a boy, we will drop the girl-girl possibility from the sample space.
This leaves only three possibilities, one of which is two boys. Hence the probability is 1/3 Did you answer this riddle correctly?
YES  NO  

She ran away from the ball. Did you answer this riddle correctly?
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When they are dead tired. Did you answer this riddle correctly?
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The captain was sitting on the deck. Did you answer this riddle correctly?
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A yardstick. Did you answer this riddle correctly?
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The poison was in the ice. When the girl drank the iced tea, the ice was still fully frozen. Gradually, as the ice cubes melted the poison was released into the drink. Did you answer this riddle correctly?
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The two babies are two of a set of triplets. Did you answer this riddle correctly?
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Corn. Did you answer this riddle correctly?
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Your name. Did you answer this riddle correctly?
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The letter M. Did you answer this riddle correctly?
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Foot steps. Did you answer this riddle correctly?
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A map. Did you answer this riddle correctly?
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Each was the name of the first man walking by. Did you answer this riddle correctly?
YES  NO  

6. Did you answer this riddle correctly?
YES  NO  

11. Did you answer this riddle correctly?
YES  NO