IBPS Clerk · Numerical Ability
Single-event probability with coins, dice, balls.
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Q1 · Probability · EASY
A bag contains 5 red balls, 4 blue balls, and 6 green balls. If one ball is drawn at random from the bag, what is the probability that it is either red or green?
Q2 · Probability · MEDIUM
Two dice are thrown simultaneously. What is the probability that the sum of the numbers appearing on them is 9?
Q3 · Probability · MEDIUM
A coin is tossed three times. What is the probability of getting at least two heads?
Q4 · Probability · HARD
A box contains 8 white balls and 12 black balls. Two balls are drawn at random one after another without replacement. What is the probability that both balls are white?
Q5 · Probability · MEDIUM
A single die is rolled once. What is the probability of getting a number which is either a prime number or greater than 4?