A bag contains 4 blue, 5 white and 6 green balls. Two balls are drawn at random. What is the probability that one ball is white?

Question

Option 1: (10/21)

Option 2: (1/2)

Option 3: (3/4)

Option 4: (2/35)

AfterBoards · Accepted Answer

Total balls = 4 + 5 + 6 = 15 balls Total ways to draw 2 balls = ^15C _2= 105 ways For one ball to be white: White and Blue: 5 x 4 = 20 ways White and Green: 5 x 6 = 30 ways Total favorable outcomes = 20 + 30 = 50 ways Probability = 50/105 = 10/21 Therefore, probability that one ball is white = 10/21

IPMAT Rohtak 2019 (QA) PYQs

A bag contains 4 blue, 5 white and 6 green balls. Two balls are drawn at random. What is the probability that one ball is white?

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