What is the probability of getting at least one six in a single throw of three unbiased dice?s
91/216
1/216
200/216
17/216
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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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2
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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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3
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In how many ways can 10 people line up at a ticket window of a railway station?
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4
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Two cards are drawn together from a pack of 52 cards. The probability that one is a spade and one is a heart, is
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5
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In how many ways can the letters of the word 'LEADER' be arranged?
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6
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A fair coin is tossed 5 times. What is the probability of getting at least three heads on consecutive tosses?
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7
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A box contains 2 white balls, 3 black balls and 4 red balls. In how many ways can 3 balls be drawn from the box, if at least one black ball is to be included in the draw?
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8
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There are 8 orators A, B, C, D, E, F, G, and H. In how many ways can the arrangements be made so that A always comes before B and B always comes before C.
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9
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A number lock on a suitcase has 3 wheels each labeled with 10 digits from 0 to 9. If the opening of the lock is a particular sequence of three digits with no repeats, how many such sequences will be possible?
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10
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A polygon has 44 diagonals. What is the number of its sides?
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