New Enroll in RBI Grade B New Batch - Starts on May 21

Practice Probability Questions and Answers

If 2 pens are drawn at random what is the probability that none of them is blue?
There are 14 boys and 6 girls giving interview for a job. If three of them are selected, then what is the probability that one of the three is a girl and t...
Out of three girls and five boys, five children are to be randomly selected for a dance programme. What is the probability that all the selected children a...
Two schools, A and B participate in a Quiz competition. The probability of A’s winning is 3/7 and the probability of B’s winning is 3/5. What i...
In a box there are 6 red, 12 blue, and 18 yellow cards. One card is picked up randomly. What is the probability that it is neither red nor yellow?
In a class, there are 16 boys and 24 girls. One of them is called out by an enroll number. What is the probability that the one called is a girl?
What is the Probability of getting a sum of ‘9’ on rolling a dice twice?
Two cards are drawn together from a pack of 52 cards. The probability that one is a club and one is a diamond?
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 red nor green?
There are 8 boys and 4 girls giving interview for a job. If three of them are selected, then what is the probability that one of the three is a girl and th...
The chance that Nikhil can solve a certain problem is1/7, the chance that Tarun can solve it is3/5. Find the probability that the problem is solved if they...
A five digits number is chosen at random. What is the probability that all the digits are distinct, the digits at odd places are odd and the digits are at ...
Five squares of a chessboard are chosen at random, the probability that three are of one colour and two of another is
Tom and Jerry throw alternatively a pair of dice. Tom wins if he throws 8 before Jerry throws 7 and Jerry wins if he throws 7 before Tom throws 8. Find the...
In a box there are 3 red, 6 blue, and 9 yellow cards. One card is picked up randomly. What is the probability that it is neither red nor yellow?
If three socks are chosen at random, what is the probability that all are blue socks?
If two socks are chosen at random, what is the probability that either all are green or all are black socks?
Integers 11, 12, 13, 14 are written on 4 cards they are well shuffled. Two cards are taken at random without replacement. What is the probability that the ...
Two cards are drawn at random from a pack of 52 cards. What is the probability that either both are black or both are queens?
Tokens numbered 1 to 350 are in a bag. What is the probability that the Token drawn has a number which is a multiple of 6 or 7?
What is the probability that Wye will speak truth for a particular question asked?
Axe speaks truth only when Wye does not speak truth, then what is the probability that Zed does not speak truth on a question?
What is the probability that the cards drawn contains 1 red card, 1 purple card and 1 yellow card?
What is the probability that the cards drawn contains exactly 2 purple card?
Two hats are picked at random, what is the probability that one is blue and one is yellow?
Two hats are picked at random, what is the probability that all hats are of green colour?
If a coin is tossed 10 times then what is the probability of getting three heads?
Out of three girls and five boys, five children are to be randomly selected for a dance programme. What is the probability that all the selected children a...
A coin is tossed successively three times. Find the probability of getting exactly one tail or two tails?
A card is chosen at random from a standard deck of 52 playing cards, without replacing it, a second card is chosen. What is the probability that firs...
Coupons numbered 1 to 10 are shuffled and one is drawn what is the probability that it bears an odd number which is also a multiple of 3?
One five letter word is to be formed taking all letters – U, Z, M, O and Q. What is the probability that this is word formed will contain all vowels ...
A box contains 6 blue shirts, 7 yellow shirts and 9 pink shirts. In how many ways can 4 shirts be drawn from the box, if at least one blue shirt, one yello...
Tokens numbered 1 to 350 are in a bag. What is the probability that the Token drawn has a number which is a multiple of 6 or 7?
A box contains 6 Brown and 8 Blue caps. There is another box which contains 8 Brown and 7 Blue caps. One cap is to drawn from either of the two boxes. What...
What is the probability that a number selected from 1,2,3.......................68,69,70, is perfect square or a perfect cube?
Two cards are drawn together from a pack of 52 cards. The probability that one is a club and one is a diamond?
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 red nor green?
Two cards are drawn at random from a pack of 52 cards. What is the probability that either both are black or both are queens?
What is the probability that four A’s come consecutively in the word ‘AMALGAMATION’

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