Probability7 questions7 PYQ
Probability — JEE Maths Practice Questions & Solutions
7 questions on Probability with full step-by-step solutions, including past-year (PYQ) problems. Free to practice.
A bag contains coins — fair coins, and one coin with 'Head' on both sides. A coin is selected at random and tossed. If the probability of getting 'Head' is , then is equal to
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A man throws a fair coin repeatedly. He gets 10 points for each head and 5 points for each tail. If the probability that he gets exactly 30 points is , , then is equal to
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Let . If the probability that for all is , , then is equal to
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From a month of 31 days, 3 different dates are selected at random. If the probability that these dates are in an increasing A.P. is , where and , then is equal to
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A coin is tossed times. If the probability that exactly heads appear in the first six tosses and exactly heads appear in the last five tosses is , then is equal to
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A letter is known to have arrived either from KANPUR or from ANANTPUR. On the envelope just two consecutive letters "AN" are visible. The probability that the letter came from ANANTPUR is
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Players and are selected as captain with probabilities and respectively. If is captain, the team wins with probability ; if is captain, the team wins with probability . Then the probability that the team wins is:
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