New RBI Grade B 2025 Notification will come Soon! Enroll Here

Practice Probability Questions and Answers

The probability of selecting a rotten egg randomly from a basket of 1000 eggs is 0.16. What is the number of rotten eggs in the basket?
The probability of selecting a rotten egg randomly from a basket of 250 eggs is 0.2. What is the number of rotten eggs in the basket?
The probability of selecting a rotten egg randomly from a basket of 1050 eggs is 0.36. What is the number of rotten eggs in the basket?
The probability of selecting a rotten egg randomly from a basket of 1200 eggs is 0.22. What is the number of rotten eggs in the basket?
The probability of selecting a rotten egg randomly from a basket of 800 eggs is 0.26. What is the number of rotten eggs in the basket?
A bag contains 13 white and some black balls. If the probability of drawing a black ball from the bag is twice that of drawing a white ball, find the numbe...
A bag contains 19 white and some black balls. If the probability of drawing a black ball from the bag is twice that of drawing a white ball, find the numbe...
A bag contains 20 white and some black balls. If the probability of drawing a black ball from the bag is 2.5 times that of drawing a white ball, find the n...
A bag contains 13 white and some black balls. If the probability of drawing a black ball from the bag is 3 times that of drawing a white ball, find the num...
A bag contains 20 white and some black balls. If the probability of drawing a black ball from the bag is 6.25 times that of drawing a white ball, find the ...
A bag contains 25 white and some black balls. If the probability of drawing a black ball from the bag is 1.4 times that of drawing a white ball, find the n...
A bag contains 10 white and some black balls. If the probability of drawing a black ball from the bag is 2 times that of drawing a white ball, find the num...
A bag contains 3 black and 9 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
A bag contains 9 black and 10 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
A bag contains 10 black and 12 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
A bag contains 12 black and 14 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
A bag contains 14 black and 16 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
A bag contains 16 black and 18 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
A bag contains 18 black and 20 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
P and Q together started a business with initial investment in the ratio of 1:4, respectively. The time-period of investment for P and Q is in the ratio of...
A bag contains 3 Green and 9 Red balls. One ball is drawn at random. What is the probability that the ball drawn is Red?
A bag contains 6 Green and 8 Red balls. One ball is drawn at random. What is the probability that the ball drawn is Red?
A bag contains 9 Green and 10 Red balls. One ball is drawn at random. What is the probability that the ball drawn is Red?
A bag contains 8 Green and 10 Red balls. One ball is drawn at random. What is the probability that the ball drawn is Red?
A bag contains 14 Green and 16 Red balls. One ball is drawn at random. What is the probability that the ball drawn is Red?
In a lottery, there are 6 prizes and 30 blanks. A lottery is drawn at random. What is the probability of getting a prize?
In a lottery, there are 12 prizes and 16 blanks. A lottery is drawn at random. What is the probability of getting a prize?
Out of 6 white marbles, 3 blue marbles, in how many ways we select one or more marbles?
There are a total of 42 students (boys and girls) in a class. The probability of picking at least one boy when two students are picked from the class is (1...
In a bag there are a total of 60 fruits. The average of the number of apples and mangoes in the bag is equal to the number of bananas in the bag. The ratio...
If n(A) = 25, n(B) = 40 and n(A ∪ B) = 50, then n(A ∩ B) equals
Two players, A and B, play a tennis match. It is known that the probability of A winning the match is 0.65. What is the probability of B winning the match?...
40 pens are there in a box where 22 are red pens, ‘p’ are blue pens and remaining are black pens. If a pen is picked, the probability of getting blue p...
48 pens are there in a box where 22 are red pens, ‘p’ are blue pens and remaining are black pens. If a pen is picked, the probability of getting blue p...
34 pens are there in a box where 10 are red pens, ‘p’ are blue pens and remaining are black pens. If a pen is picked, the probability of getting blue p...
24 pens are there in a box where 10 are red pens, ‘p’ are blue pens and remaining are black pens. If a pen is picked, the probability of getting blue p...
A bag contains 5 black balls,“a” white balls and “b” purple balls. If one ball taken out from the bag, then probability of being it white is 2/7, w...
In a bag contains 4 one rupees coins and 3 five rupees coin. If two coins are drawn at random, find the probability of getting a one rupee coin and a five ...
A bag contains 7 (one rupee coins), 4 (two rupee coin) and 5 (ten rupee coin). Find the probability that 3 coins drawn at random are either (two rupee coin...
In a bag, there are three different colour balls namely red, yellow and white. The sum of the number of yellow and red balls in the bag is equal to the num...

More Topics

Today's Class

There is no live class for today.