How many four-digit numbers, each divisible by 4 can be formed using the digits 5, 6, 7, 8, 9, repetition of digits being allowed in any number?
75
100
125
150
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1
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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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2
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In how many different ways can the letters of the word 'CORPORATION' be arranged so that the vowels always come together?
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3
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If 18Cr = 18Cr+2 ; find rC5.
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4
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In how many different ways can the letters of the word 'DETAIL' be arranged in such a way that the vowels occupy only the odd positions?
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5
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In a single throw with four dice,the probability of throwing seven is
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6
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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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7
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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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8
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If C(n, 7) = C(n, 5), find n
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9
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The value of 75P2
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10
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Find the probability that a leap year selected at random will contain 53 Sundays
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