In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize?
1/10
2/5
2/7
5/7
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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 a simultaneous throw of two dice, what is the probability of getting a total of 7?
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3
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If
SolutionAnswer :1/2 |
4
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Four letters are selected from the word “CAPAME” and are rearranged to form four letter words. How many words can be formed?
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5
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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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6
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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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7
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From a pack of 52 playing cards, two cards are drawn together at random. Calculate the probability of both the cards being the Kings.
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8
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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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9
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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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10
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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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