csitfamilyProability
In a box, there are 8 red, 7 blue and 6 green valls. One ball is picked up randomly, what is the proability that it is neither red or green [2014]
1/3
1/4
7/9
8/21
If you roll two dices, what is the proability of sum total of 5?[2011]
1/6
1/9
1/18
1/36
A jar contains 4 blue balls and 40 red balls. Which of the following is % of blue balls[2010]
9
10
11
12
Other Questions
Two dice are thrown simultaneously. The probability of obtaining a total score of seven is
1/6
1/3
2/7
5/6
Two dice are tossed. The probability that the total score is a prime number is:
1/6
5/12
1/2
7/9
The probability that a man can hit a target is 3/4. He tries 5 times. The proability that he will hit the target at least three times is.
291/364
371/461
471/502
459/512
A dice is thrown once. Find the probability that 3 or greater that 3 turns up.
1/2
1/3
1/4
2/3
The probability of getting sum more than 7 when a pair of dice are thrown is
7/36
5/12
7/12
12/18
The chance of winning the race of the horse A is 1/5 and that of horse B is 1/6. What is the Probability that the race will be won by A or B?
1/30
1/3
11/30
1/15
What is the probability of two person being born on the same day.
1/49
1/365
1/7
2/7
In tossing three coins at a time, what is the probability of getting at most one hand?
3/8
7/8
1/2
1/8
Two balls are selected from box containing 2 blue and 7 red balls. What is the probability that at least one ball is blue?
2/9
7/9
5/12
7/12
Suppose six coins are tossed simultaneously. Then the probability of getting at least one tail is
71/72
53/54
63/64
1/12
Six dice are thrown. The proability that different number will turn up is
129/1296
1/54
5/324
5/54
