Practice Probability Questions and Answers

• A person can hit a target 3 times out of 8 shots. If he fires 10 shots, what is the probability that he will hit the target twice ...
• In a cricket world cup the probability that India will win the cup is ¼. The Probability of Pakistan winning the cup is 1/5 and Australia winning the cup ...
• A box contains 21 ribbons out of which [A] ribbons are white, and rest is green in colour. The probability of drawing a white ribbon and a green ribbon tog...
• what is the probability that at least one of them narrates an incident truthfully.
• The profit from sales, amounting to Rs. 4,200, is distributed between two salesmen, 'Amit' and 'Bheem,' in such a way that 'Amit' receives more money than ...
• A student is required to answer 4 questions out of 12 questions in an English paper, which are divided into two sections of 6 questions each. If the studen...
• Mohit is a teacher and he teach some students in two (Morning & evening) slots. There are 5 boys and ‘x’ girls in morning slot, while there are ‘x’...
• There are 'x' one-rupee coins, 'x + 5' two-rupee coins, and 'x - 5' five-rupee coins in a purse. Two coins are drawn from the purse without replacement, an...
• "A piggy bank comprises 5-rupee coins, 10-rupee coins, and 20-rupee coins. The quantity of 5-rupee coins in the piggy bank is 75% more than the number of 2...
• The probability of selecting 2 one-rupee coins from a collection of 'a' one-rupee coins and 4 two-rupee coins is 1/3. Determine the probability of randomly...
• A person wanted to visit four places Chennai, Bangalore, Delhi, and Mumbai in one trip. Find the probability of the person visiting Chennai immediately bef...
• There are thirty balls in my cupboard in complete disarray. Ten are black, ten are red and ten are brown, but I cannot distinguish the colors in the dark. ...
• All the sides of a 3-inch solid cube are painted. The cube is then cut into cubes of equal size to 1 inch each. If a cube is chosen at random, what is the ...
• A bowl contains 9 blue balls, 7 white, and 5 black balls. If 2 balls are drawn in one go, then the probability of exactly one ball being blue is:
• In a box, there are three different colour cubes: blue, green, and orange. The sum of the number of green and blue cubes in the box equals the number of or...
• A box holds a total of 'p' purple balls and 5 silver balls. Two balls are drawn sequentially without replacement. The probability that both selected balls ...
• In a Polly bag, the distribution of red, white, and yellow rubber bands is in the ratio 7:3:8. Suppose the yellow rubber bands were reduced by 35 and the r...
• A container holds 15 orange, 9 purple, and 6 gray balls. If 2 balls are picked at random without replacement, find the probability that the first ball is o...
• A basket contains 8 pink, 12 violet, and 5 indigo balls. If 2 balls are picked at random without replacement, find the probability that the first ball is p...
• The likelihood that Maya secures a place in college D is 90% and in college E is 85%. Maya's order of preference is 'D', then 'E', and finally 'F'. Assumin...
• Karan has a 65% chance of being admitted to school L and a 55% chance at school M. His preferences are 'L', then 'M', and lastly 'N'. Assuming Karan gets i...
• The probability that Leah will be accepted into program P is 60% and into program Q is 40%. Leah prefers program 'P' first, then 'Q', and finally 'R'. Assu...
• A bag contains 12 blue balls, 18 red balls, and 20 green balls. One ball is drawn at random. Find the probability that the ball drawn is either blue or gre...
• A bag contains 7 blue balls, 28 red balls, and 10 green balls. One ball is drawn at random. Find the probability that the ball drawn is either blue or gree...
• A bag contains 9 blue balls, 16 red balls, and 20 green balls. One ball is drawn at random. Find the probability that the ball drawn is either blue or gree...
• Maria is taking a quiz that contains 3 questions, each with 5 options. Only one option is correct for each question. If Maria guesses all the answers, what...
• John is answering a survey with 3 questions, each with 2 options. Only one option is correct per question. If John answers randomly, what is the probabilit...
• Anna is participating in a trivia game with 6 questions, each with 3 choices. Only one choice is correct per question. If Anna guesses on all questions, wh...
• A basket contains (x + 4) red apples, (x + 6) green apples, and (x + 8) yellow apples. The probability of drawing a yellow apple from the basket is (7/20)....
• A box contains (x + 10) pencils, (x + 15) pens, and (x + 20) markers. The probability of drawing a marker from the box is (2/5). Find the number of pens in...
• John bought a watch for Rs. 3,400 and sold it at a profit percentage equal to the profit percentage earned on selling 10 bicycles for the cost price of 15 ...
• A bag contains cards numbered between 33 and 102. If one card is drawn from the bag, the probability that the number on the drawn card is a perfect square ...
• A bag contains 7 green balls, 5 blue balls, and 10 yellow balls. A box contains 3 green balls and 8 yellow balls. A ball is randomly drawn from the box and...
• A bag contains 5 red, 4 green, and 3 blue balls. What is the probability of drawing a green ball?
• In a basket, there are (x + 7) red balls, ‘x’ blue balls, and (x + 3) black balls. If the probability of picking two blue balls at random is (1/28), th...
• In a jar, there are (x + 8) red balls, ‘x’ blue balls, and (x + 2) black balls. If the probability of picking two blue balls at random is (1/45), then ...
• In a container, there are (x + 4) red balls, ‘x’ blue balls, and (x + 5) black balls. If the probability of picking two blue balls at random is (1/30),...
• Three cards are drawn one after another with replacements from a standard deck of 52 cards. What is the probability of getting the first card a Queen, the ...
• 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?
• A bowl contains 9 blue balls, 7 white, and 5 black balls. If 2 balls are drawn in one go, then the probability of exactly one ball being white is: