Ask iit jee aieee pet cbse icse state board community Discussion Response Post to: Monty Hall problem
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anchit saini (4396)

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here is my soln (which i already know)

his probability of winning will increase from 1/3 to 2/3 cos before there is one car and 2 goats hence the probability of him having chosen the car is 1/3
now , the goat is shown so
either the player has chosen the car or he has chosen the first goat or he has chosen the 2nd goat . so there are 3 possibilities and if he switches then he either gets the goat (in first case) or he gets the car in both the left cases
thus now the probability is 2/3

Impossible To be Impossible is Impossible
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