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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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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10
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In how many different ways can the letters of the word 'OPTICAL' be arranged so that the vowels always come together?
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2
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12 person are seated at a round table. Number of ways of selecting 2 persons not adjacent to each other is
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3
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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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4
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A, B, C, D and E sit on five chairs all of which are facing north. C will sit only on the leftmost chair and B will not sit anywhere to the left of A. In how many ways they can be seated?
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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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In a simultaneous throw of two dice, what is the probability of getting a total of 7?
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7
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A teacher has to choose the maximum different groups of three students from a total of six students. Of these groups, in how many groups there will be included in a particular student?
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8
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How many 4-letter words with or without meaning, can be formed out of the letters of the word, 'LOGARITHMS', if repetition of letters is not allowed?
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9
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There are 8 orators A, B, C, D, E, F, G, and H. In how many ways can the arrangements be made so that A always comes before B and B always comes before C.
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