>> Aptitude >> Probability
1). What is the probability that a card drawn at random from a pack of 52 cards either a king or a spade?
A). 17/52 B). 4/13
C). 3/13 D). 13/52
2). A card is drawn from a well-shuffled pack of cards. The probability of getting a queen of club or a king of heart is
A). 1/52 B). 1/26
C). 1/13 D). 1/39
3). One card is drawn at random from a well-shuffled pack of 52 cards. What is the probability that the card is either a red card or a king?
A). 1/3 B). 7/13
C). 10/13 D). None of these
4). A single letter is selected at random from the word "PROBABILITY". The probability that it is a vowel, is
A). 3/11 B). 4/11
C). 2/11 D). 0
5). The probability that a leap year selected at random contains 53 Sundays, is
A). 7/366 B). 26/183
C). 1/7 D). 2/7
6). The probability of drawing a red card from a deck of playing cards is
A). 2/18 B). 1/13
C). 1 /4 D). 1 / 2
7). The probability of getting a composite number when a six-faces unbiased die is tossed, is
A). 1 / 4 B). 1 / 3
C). 1 / 2 D). 1
8). If three unbiased coins are tossed simultaneously, then the probability of exactly two heads, is
A). 1 / 8 B). 2 / 8
C). 3 / 8 D). 4 / 8
9). Let E be the set of all integers with 1 at their unit places. The probability that a number chosen from {2,3,4,......50} is an element of E, is
A). 5 / 49 B). 4 / 49
C). 3 / 49 D). 2 / 49
10). When two dice are rolled, what is the probability that the sum of the numbers appeared on them is 11?
A). 1 / 6 B). 1 / 18
C). 1 / 9 D). 1