Find the probability that a leap year selected at random will contain 53 Sundays
2/7
3/7
2/3
5/6
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1
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There are seven pairs of black shoes and five pairs of white shoes. They are all put into a box and shoes are drawn one at a time. To ensure that at least one pair of black shoes are taken out, what is the number of shoes required to be drawn out?
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2
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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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3
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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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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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Three unbiased coins are tossed. What is the probability of getting at most two heads ?
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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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In how many ways can a cricketer can score 200 runs with fours and sixes only?
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8
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In how many ways can the letters of the word 'LEADER' be arranged?
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9
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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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10
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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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