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)=
3/13
6/13
7/13
10/13
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1
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In how many ways can a group of 5 men and 2 women be made out of a total of 7 men and 3 women?
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2
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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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3
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A box contains 5 green, 4 yellow and 3 white marbles. three marbles are drawn at random. What is the probability that all they are not of the same colour?
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4
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Two dice are thrown simultaneously. What is the probability of getting two numbers whose product is even?
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5
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How many 4letter words with or without meaning, can be formed out of the letters of the word, 'LOGARITHMS', if repetition of letters is not allowed?
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6
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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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7
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If ^{18}C_{r }= ^{18}C_{r+2 }; find ^{r}C_{5}.
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8
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If P(A)=2/5, P(B)=3/10 and P(A ∩ B) =51, then P(A'  B'). P(B'  A') is equal to
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9
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In a group of 6 boys and 4 girls, four children are to be selected. In how many different ways can they be selected such that at least one boy should be there?
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10
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How many integers between 1000 and 10000 have no digits other than 4, 5, or 6?
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