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A card is drawn from a well shuffled pack of cards. What is the probability that it is a red card or a face card? |

A) 19/26
B) 9/13
C) 8/13
D) 37/52
Correct Answer :8/13 Explanation :There are a total of 52 cards. So, the probability of having a card's red card or face card |

A box of balls contains 120 red and 80 blue ones. Two ball are taken at random. What is the probability that one is red and the other is blue ? |

A) 96/199
B) 16/33
C) 24/100
D) 8/33
Correct Answer :96/199 Explanation :Total number of ball are 200. |

A box contains 20 white, 30 black, 40 blue and 30 red balls. Compute the probability that one of the balls extracted at random from the box turns out to be white, black or red. ? |

A) 3/4
B) 3/5
C) 1/3
D) 2/3
Correct Answer :2/3 Explanation :Probability that the extracted ball is blue = 40/120 => 1/3 |

If seven coins are tossed, what is the probability of obtaining at least 2 heads ? |

A) 12/16
B) 15/16
C) 15/18
D) 15/20
Correct Answer :15/16 Explanation :Probability of getting no head = Probability of getting at least 2 heads= 1 - 1/128 - 7/128 => 120/128 =>15/16 |

If one rolls a fair-sided die twice, what is the probability that the die will land on the same number on both the occasions ? |

A) 1/12
B) 1/6
C) 1/24
D) 1/8
Correct Answer :1/6 Explanation :Let E = Event of getting same number on both occasions Required probability = 6 / 6 |

A die is thrown once. Find the probability of getting an even number? |

A) 3/4
B) 1/4
C) 1/2
D) 3/2
Correct Answer :1/2 Explanation :Sample space is, S : {1,2,3,4,5,6} =6 Favorable outcomes,even numbers E : { 2,4,6 } = 3 P(getting an event number)=n(E)/n(S)=3/6=1/2 |

A card is drawn from a well-shuffled deck of 52 playing cards. Find the probability that it is not an ace? |

A) 1/13
B) 4/13
C) 3/13
D) 12/13
Correct Answer :12/13 Explanation :total number of cards=52 The probability P(not getting an ace)=1 - P(getting an ace) |

A bag contains 24 eggs out of which 8 are rotten. The remaining eggs are not rotten eggs. The two eggs are selected at random. What is the probability that one of the eggs is rotten? |

A) 11/23 B) 17/23 C) 13/23 D) 19/23 Correct Answer :13/23 Explanation :Number of total eggs = 24 Required probability = ( |

From a well-shuffled deck of 52 cards, one card is drawn at random. Find the probability of getting a face card? |

A) 1/13 B) 2/13 C) 3/13 D) 4/13 Correct Answer :3/13 Explanation :Sample space is, S : 52 cards |