In how many ways can 10 people line up at a ticket window of a railway station?
36,28,800
34,82,800
33,44,800
33,28,800
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1
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In a group of 6 boys and 4 girls, four children are to be selected. In how many different ways can they be selected such that at least one boy should be there?
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2
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In a simultaneous throw of two dice, what is the probability of getting a total of 7?
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3
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How many parallelograms will be formed if 7 parallel horizontal lines intersect 6 parallel vertical lines?
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4
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A basketball team of 5 players is to be selected from a group of 10 men and 8 women players. A volley ball team of 6 players is to be selected from a group of 8 men and 7 women players. Find the difference in the number of ways in which both the teams are selected, given that each team has only 2 female players.
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5
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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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6
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How many numbers can be formed from 1, 2, 3, 4, 5 (without repetition), when the digit at the unit’s place must be greater than that in the ten’s place?
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7
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What is the probability of getting at least one six in a single throw of three unbiased dice?s
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8
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Seven different objects must be divided among three people. In how many ways can this be done if one or two of them must get no objects?
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9
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There are 20 people among whom two are sisters. Find the number of ways in which we can arrange them around a circle so that there is exactly one person between the two sisters.
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10
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In how many ways can a group of 5 men and 2 women be made out of a total of 7 men and 3 women?
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