1.
In a drawer there are 4 white socks, 3 blue socks and 5 grey socks. Two socks are picked randomly. What is the possibility that both the socks are of same color?

2.
What is probability of drawing two clubs from a well shuffled pack of 52 cards?

3.
What are the chances that no two boys are sitting together for a photograph if there are 5 girls and 2 boys?

4.
A card is drawn from a pack of 52 cards. The probability of getting a queen of club or a king of heart is___________?

5.
From a pack of cards two cards are drawn one after the other, with replacement. The probability that the first is a red card and the second is a king is_________?

6.
Out of 10 persons working on a project, 4 are graduates. If 3 are selected, what is the probability that there is at least one graduate among them?

7.
The probability that A speaks truth is 3/5 and that of B speaking truth is 4/7. What is the probability that they agree in stating the same fact?

8.
In a party there are 5 couples. Out of them 5 people are chosen at random. Find the probability that there are at the least two couples?

9.
The probability of a lottery ticket being a prized ticket is 0.2. When 4 tickets are purchased, the probability of winning a prize on at least one ticket is__________?

10.
10 books are placed at random in a shelf. The probability that a pair of books will always be together is_________?