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?
40
400
5040
2520
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In how many ways a committee, consisting of 5 men and 6 women can be formed from 8 men and 10 women?
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2
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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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3
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Ten participants are participating in a competition. In how many ways can the first three prizes be won?
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4
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How many parallelograms will be formed if 7 parallel horizontal lines intersect 6 parallel vertical lines?
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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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If C(n, 7) = C(n, 5), find n
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7
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If A and B are two independent events with P(A) = 3/5 and P(B) = 4/9 , then P(A' ∩ B' ) equals
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8
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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?
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9
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If 18Cr = 18Cr+2 ; find rC5.
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10
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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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