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
Q36. **A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If three marbles are drawn what is the probability that one is yellow and two are red?**
- 24/455
- 3/91
- 12/455
- 15/91
- None of these
Solution : 12/455
Q37. **A bag contains five white and four red balls. Two balls are picked at random from the bag. What is the probability that they both are different color?**
- 4/9
- 5/9
- 7/9
- 8/9
- 1/3
Solution : 5/9
Q38. **Out of 15 consecutive numbers, 2 are chosen at random. The probability that they are both odds or both primes is -.**
- 10/17
- 10/19
- 46/105
- 11/15
- cannot be determined
Solution : cannot be determined
Q39. **What is the probability that a leap year has 53 Sundays and 52 Mondays?**
- 0
- 1/7
- 2/7
- 5/7
- 6/7
Solution : 1/7
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Q40. **10 books are placed at random in a shelf. The probability that a pair of books will always be together is -.**
- 1/10
- 9/10
- 1/5
- 3/10
- 1/2
Solution : 1/5
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