If four dice are thrown together, then what is the probability that the sum of the numbers appearing on them is 25 ?
0
1/2
1
1/1296
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The number of triangles that can be formed by choosing the vertices from a set of 12 points, seven of which lie on the same straight line, is
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2
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How many 4-letter 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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3
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If a team of 4 persons is to be selected from 8 males and 8 females, then in how many ways can the selections be made to include at least 1 female
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4
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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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5
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How many 3-digit numbers can be formed from the digits 2, 3, 5, 6, 7 and 9, which are divisible by 5 and none of the digits is repeated
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6
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How many natural numbers can be made with digits 0, 7, 8 which are greater than 0 and less than a million?
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7
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There are 6 letters for 3 envelopes. In how many different ways can the envelopes be filled?
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8
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From among the 36 students in a class, one leader and one class representative are to be appointed. In how many ways can this be done?
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9
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How many numbers can be formed from 1, 2, 3, 4, 5 (without repetition), when the digit at the unit’s place must be greater than that in the ten’s place?
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10
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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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