From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least three men are in the committee. In how many ways can it be done?
624
702
756
812
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A fair coin is tossed 5 times. What is the probability of getting at least three heads on consecutive tosses?
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10
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In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize?
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2
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How many 5 digit even numbers with distinct digits can be formed using the digits 1, 2, 5, 5, 4?
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3
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If four dice are thrown together, then what is the probability that the sum of the numbers appearing on them is 25 ?
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4
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5
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6
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Find the number of ways in which mixed double tennis game can be arranged amongst 9 married couples if no husband and wife play in the same game
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7
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If 18Cr = 18Cr+2 ; find rC5.
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8
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9
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One red flower, three white flowers, and two blue flowers are arranged in a line such that
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