2023
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue?
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10/21
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11/21
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2/7
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5/7
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Explanation:
Detailed explanation-1: -Therefore the required probability is 3/7.
Detailed explanation-2: -As we want the first ball to be red and the second ball to be blue, we need to multiply these two fractions. Eight forty-ninths multiplied by twelve forty-eighths is equal to two forty-ninths. Therefore, the probability that the first ball is red and the second ball is blue is two out of 49-two forty-ninths.
Detailed explanation-3: -The chance of drawing a red ball is 2/6 = 1/3. The chance of drawing a green ball is 4/6 = 2/3.
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