In a simultaneous throw of two dice, what is the probability of getting a total of 7?
1/6
1/4
2/3
3/4
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1
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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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2
Discuss

There are three rooms in a motel: one single, one double, and one for four persons. How many ways are there to house seven persons in these rooms?
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3
Discuss

In a group of 6 boys and 4 girls, four children are to be selected. In how many different ways can they be selected such that at least one boy should be there?
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4
Discuss

If ,, are probabilities of three mutually exclusive events, then
SolutionAnswer :1/2 
5
Discuss

Find the probability that a leap year selected at random will contain 53 Sundays
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6
Discuss

It is required to seat 5 boys and 4 girls in a row so that the girls occupy the even places. How many such arrangements are possible?
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7
Discuss

The students in a class are seated, according to their marks in the previous examination. Once, it so happens that four of the students got equal marks and therefore the same rank. To decide their seating arrangement, the teacher wants to write down all possible arrangements one in each of separate bits of paper in order to choose one of these by lots. How many bits of paper are required?
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8
Discuss

How many words, with or without meaning, can be formed using all letters of the word EQUATION using each letter exactly once?
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9
Discuss

Three chairs are arranged in a row facing three other chairs. 4 boys and 2 girls are to be seated on these chairs such that girls are always facing each other. In how many ways can they be seated?
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10
Discuss

Two dice are thrown simultaneously. What is the probability of getting two numbers whose product is even?
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