What is the probability of getting at least one six in a single throw of three unbiased dice?s
91/216
1/216
200/216
17/216
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1
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In how many ways the letters of the word “UNDERDOG” can be arranged such that the first and last letters are same and no two vowels are together?
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2
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If ,, are probabilities of three mutually exclusive events, then
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3
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How many words, with or without meaning, can be formed using all letters of the word EQUATION using each letter exactly once?
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4
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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?
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5
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A box contains two white balls, three black balls and four red balls. Balls of the same colour are distinct. The number of ways in which three balls can be drawn from the box if atleast one black ball is to be included in the draw, is
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6
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A committee of 8 members is to be selected from a group of 12 male and 10 female members. In how many ways the committee is selected such that at most two and at least one male member are there in the committee?
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7
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In how many ways can the letters of the word 'LEADER' be arranged?
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8
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If 18Cr = 18Cr+2 ; find rC5.
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9
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A biased coin in tossed thrice. What is the probability that heads turns out at least twice considering that the probability of a head is 60%?
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10
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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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