In how many ways can the letters of the word 'LEADER' be arranged?
360
720
120
None Of These
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1
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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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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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One red flower, three white flowers, and two blue flowers are arranged in a line such that
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4
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A five-letter word is to be formed from a group of 5 vowels and 4 consonants, using at least one vowel and at least one consonant. In how many ways the word having a greater number of consonants than vowels can be formed?
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5
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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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6
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If C(n, 7) = C(n, 5), find n
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7
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How many words can be formed from the letters of the word "SIGNATURE" so that vowels always come together.
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8
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It is required to seat 5 boys and 4 girls in a row so that the girls occupy the even places. How many such arrangements are possible?
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9
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There are three rooms in a motel: one single, one double, and one for four persons. How many ways are there to house seven persons in these rooms?
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10
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If A, B and C are mutually exclusive and exhaustive events of a random experiment such that P(B)=3/2P(A) and P(C)=1/2P(B), then P(A∪C)=
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