probability

Probability

Probability: Probability Formulas, Probability Meaning, Conditional Probability Definition, Probability Problems, Probability Questions with Solved Exercises

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Online Aptitude Questions with Answers on Probability

Q21. **If four coins are tossed, the probability of getting two heads and two tails is -.**

  1.  3/8
  2.  6/11
  3.  2/5
  4.  4/5
  5.  5/11

Solution : 3/8
Q22. **If a card is drawn from a well shuffled pack of cards, the probability of drawing a spade or a king is -.**

  1.  19/52
  2.  17/52
  3.  5/13
  4.  4/13
  5.  9/26

Solution : 4/13

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Q23. **If six persons sit in a row, then the probability that three particular persons are always together is -.**

  1.  1/20
  2.  3/10
  3.  1/5
  4.  4/5
  5.  2/5

Solution : 1/5
Q24. **A bag contains 7 green and 8 white balls. If two balls are drawn simultaneously, the probability that both are of the same colour is -.**

  1.  8/15
  2.  2/5
  3.  3/5
  4.  11/15
  5.  7/15

Solution : 7/15

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Q25. **A basket has 5 apples and 4 oranges. Three fruits are picked at random. The probability that at least 2 apples are picked is -.**

  1.  25/42
  2.  9/20
  3.  10/23
  4.  41/42
  5.  1/42

Solution : 25/42
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