Probability

10/21

A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue?

2/91

A bag contains 4 white, 5 red and 6 blue balls. Three balls are drawn at random from the bag. The probability that all of them are red, is:

1/26

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

1/221

From a pack of 52 cards, two cards are drawn together at random. What is the probability of both the cards being kings?

1/3

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 red nor green?

21/46

In a class, there are 15 boys and 10 girls. Three students are selected at random. The probability that 1 girl and 2 boys are selected, is:

2/7

In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize?

7/8

Three unbiased coins are tossed. What is the probability of getting at most two heads?

9/20

Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?

3/4

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

5/12

Two dice are tossed. The probability that the total score is a prime number is:

1/9

What is the probability of getting a sum 9 from two throws of a dice?