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Aptitude :

Probability




1.
In a throw of coin what is the probability of getting head.

1
2
1/2
0




2.
In a throw of coin what is the probability of getting tails.

1
1/2
2
0




3.
Three unbiased coins are tossed, what is the probability of getting at least 2 tails ?

1/2
1/3
1/4
1/5




4.
In a throw of dice what is the probability of getting number greater than 5

1/2
1/4
1/8
1/6




5.
What is the probability of getting a sum 9 from two throws of dice.

1/2
1/9
1/7
1/6




6.
Two dice are thrown simultaneously. What is the probability of getting two numbers whose product is even ?

3/4
1/4
2/4
1




7.
 In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither blue nor green?

2/3
8/21
3/7
9/22




8.
A card is drawn from a pack of 52 cards. The probability of getting a queen of club or a king of heart is

1/12
1/14
1/26
1




9.
From a pack of 52 cards, 1 card is drawn at random. Find the probability of a face card drawn.

4/13
1/52
1/4
none of above




10.
A speaks truth in 75% of cases and B in 80% of cases. In what percentage of cases are they likely to contradict each other, narrating the same incident

30%
35%
33%
34%




11.
From a pack of 52 cards, two cards are drawn together, what is the probability that both the cards are kings

2/221
3/221
1/221
4/221




12.
Bag contain 10 back and 20 white balls, One ball is drawn at random. What is the probability that ball is white

1/3
2/3
4/3
5/3










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FreshersLive - No.1 Job site in India. Here you can find latest 2016 government as well as private job recruitment notifications for different posts vacancies in India. Get top company jobs for both fresher and experienced. Job Seekers can get useful interview tips, resume services & interview Question and answer. Practice online test free which is helpful for interview preparation. Register with us to get latest employment news/rojgar samachar notifications. Also get latest free govt and other sarkari naukri job alerts daily through E-mail.