Two dice are thrown simultaneously. What is the probability of getting two numbers whose product is even?
1/2
3/4
3/8
5/16
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1
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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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2
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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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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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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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5
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One card is drawn at random from a pack of 52 cards. What is the probability that the card drawn is not a face card (Jack, Queen and King only)?
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6
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If (n + 2)! = 2550 (n!); find ’n’
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7
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The value of 75P2
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8
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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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9
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Six boys and 4 girls are to be seated in two separate rows with five chairs each, such that two particular girls are always together and all the girls are not in the same row. In how many ways can they be seated?
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10
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The number of circles that can be drawn out of 10 points of which 7 are collinear is
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