Arithmetic Aptitude :: Probability
- There are 12 boys and 8 girls in a tution centre. If three of them scored first mark, then what is the probability that one of the three is a girl and the other two are boys?
- In a school, 45% of the students play football, 30% play volleyball and 15% both. If a student is selected at random, then the probability that he plays football or volleyball is:
- Two groups, A and B wrote an exam. The probability of A's pass is 2/7 and the probability of B's pass is 2/5. What is the probability that only one of them is passed out?
- A boy gets a chance of 55% to win 1st round of a game and a girl gets a chance of 60% to win 2nd round of the game. In what % of cases are they likely to contradict each other, narrating the same inci
- Two unbiased coins are tossed. What is probability of getting at most one tail ?
- Three unbiased coins are tossed, what is the probability of getting at least 2 tails ?
- In a throw of dice what is the probability of getting number greater than 5
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