1 In a simultaneous throw of two coins, the probability of getting at least one head is : A) 1/2 B) 1/3 C) 2/3 D) 3/4
2 In a simultaneous throw of two dice, what is the probability of getting a total of 7 ? A) 1/6 B) 1/4 C) 2/3 D) 3/4
3 What is the probability of getting a sum 9 from two throws of a dice ? A) 1/6 B) 1/8 C) 1/9 D) 1/12
4 In a simultaneous throw of two dice, what is the probability of getting a doublet ? A) 1/6 B) 1/4 C) 2/3 D) 3/7
5 Two dice are thrown simultaneously. What is the probability of getting two numbers whose product is even ? A) 1/2 B) 3/4 C) 3/8 D) 5/16
6 Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn bears a number which is a multiple of 3 ? A) 3/10 B) 3/20 C) 2/5 D) 1/2
7 One card is drawn at random from a pack of 52 cards. What is the probability that the card drawn is a face card ? A) 1/13 B) 4/13 C) 1/4 D) 9/52
8 A card is drawn from a pack of 52 cards. The probability of getting a queen of club or a king of heart is : A) 1/13 B) 2/13 C) 1/26 D) 1/52
9 One card is drawn from a pack of 52 cards. What is the probability that the card drawn is either a red card or a king ? A) 1/2 B) 6/13 C) 7/13 D) 27/52
10 The probability that a card drawn from a pack of 52 cards will be a diamond or a king, is : A) 2/13 B) 4/13 C) 1/13 D) 1/52
11 Two cards are drawn together from a pack of 52 cards. The probability that one is a spade and one is a heart, is : A) 3/20 B) 29/34 C) 47/100 D) 13/102
12 Two cards are drawn from a pack of 52 cards. The probability that either both are red or both are kings, is : A) 7/13 B) 3/26 C) 63/221 D) 55/221
13 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 ? A) 10/21 B) 11/21 C) 2/7 D) 5/7
14 A box contains 20 electric bulbs, out of which 4 are defective. Two bulbs are chosen at random from this box. The probability that at least one of these is defective, is : A) 4/19 B) 7/19 C) 12/19 D) 21/95
15 A man and his wife appear in an interview for two vacancies in the same post. The probability of husband's selection is (1/7) and the probability of wife's selection is (1/5). What is the probability that only one of them is selected ? A) 4/5 B) 2/7 C) 8/15 D) 4/7