# Aptitude - Probability

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Two packs of cards are thoroughly mixed and shuffled and two cards are drawn at random,one after the other. What is the probability that both of them are Jacks?

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A table has three drawers. It is known that one of the drawers contains two silver coins, another contains two glod coins and the third one contains a silver coin and a gold coin. One of the drawers is opended at random and a coin is drawn. It is found to be a silver coin. What is the probability that the other coin in the drawer is a gold coin?

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A student has 60% chance of passing in English and 54% chance of passing in both English and Mathematics. What is the percentage probability that he will fail in Mathematics?

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A card is randomly drawn from a deck of 52 cards. What is the probability getting an Ace or King or Queen?

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P(drawing a ace or a queen or king) = P(drawing aa ace + P(drawing a queen) + P(drawing an king) = 4/52 + 4/52 + 4/52 = 12/52==> 6/26==> 3/13

A letter is chosen at random from the word'ASSASSINATION'. What is the probability that it is a vowel?

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