Practice Probability Questions and Answers

• 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?
• 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...
• A bag contains 4 red bands, 4 green bands and 6 blue bands. Two bands are drawn randomly. What is the probability that at most one band is red?
• In a bag, there are four different colour of balls namely Red, Blue, Green and Yellow. The ratio between the number of blue and yellow balls in the bag is ...
• Determine the number of ways to form a Kabaddi team consisting of six players from a group of 7 male players and 5 female players. Specifically, calculate ...