51.
In a throw of coin what is the probability of getting head.

52.
In a throw of dice what is the probability of getting number greater than 5

53.
A box contains 6 bottles of variety 1 drink, 3 bottles of variety 2 drink and 4 bottles of variety 3 drink. Three bottles of them are drawn at random, what is the probability that the three are not of the same variety.

54.
In a throw of coin what is the probability of getting tails.

55.
Two dice are thrown simultaneously. What is the probability of getting the sum of the face number is at most 5?

56.
There are 12 boys and 8 girls in a tuition centre. If three of them scored first mark, then what is the probability that one of the three is a girl and the other two are boys?

57.
In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither blue nor green?

58.
Two dice are thrown simultaneously. What is the probability of getting the sum of the face number is at least 10?

59.
In a class, there are 12 boys and 16 girls. One of them is called out by an enroll number, what is the probability that the one called is a girl?

60.
Two unbiased coin are tossed .What is the probability of getting at most one head?

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