How many 5 digit even numbers with distinct digits can be formed using the digits 1, 2, 5, 5, 4?
16
24
36
48
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1
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12 person are seated at a round table. Number of ways of selecting 2 persons not adjacent to each other is
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2
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What is the sum of all 4 digit numbers that can be formed by the digits 1, 2, 3, 4 each exactly once
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3
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A biased coin in tossed thrice. What is the probability that heads turns out at least twice considering that the probability of a head is 60%?
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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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Find the probability that a leap year selected at random will contain 53 Sundays
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6
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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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7
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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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8
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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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9
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In how many different ways can the letters of the word 'OPTICAL' be arranged so that the vowels always come together?
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10
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A fiveletter 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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