Probability (SSC)

Total Questions: 64

41. If 9 students are standing on a circular path, then the probability that 2 of them are always standing together is….

Correct Answer: (a)
Solution:

42. Two letters selected from the word ‘TENDULKAR’. The probability that both are vowels is:

Correct Answer: (b)
Solution:

43. Two integers are selected at random from the first 11 natural numbers. If the sum of the integers is even, then the probability that both the numbers are odd is:

Correct Answer: (b)
Solution:

44. Five salesmen A,B,C,D and E, of a company are considered for a three member trade delegation to represent the company at an international trade conference. What is the probability that A gets selected?

Correct Answer: (a)
Solution:

45. A letter of the English alphabet is chosen at random. Probability of getting a vowel is...

Correct Answer: (a)
Solution:

46. A card is drawn at random from a pack of playing cards. What is the probability of getting a face card?

Correct Answer: (d)
Solution:

47. In tossing three coins at a time, the probability of getting at least one head is:

Correct Answer: (a)
Solution:

48. A dice is thrown twice and the sum of the appearing numbers is 10. Then the probability that the number 5 has appeared at least once is:

Correct Answer: (b)
Solution:

49. A box contains 2 black, 6 green and 4 yellow balls. If 2 balls are picked up at random, the probability that both are green-coloured is:

Correct Answer: (a)
Solution:

50. Two cards are drawn from a pack of 52 cards. The probability that out of 2 cards, one card is red and one card is black is:

Correct Answer: (d)
Solution: