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JEE Main Math Class 12 Probability Part 1 Questions

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Question : 38

Total: 100

An urn contains 5 red and 2 green balls. Aball is drawn at random from the urn. If the drawn ball is green, then a red ball is added to the urn and if the drawn ball is red, then a green ball is added to the urn; the original ball is not returned to the urn. Now, a second ball is drawn at random from it. The probability that the second ball is red is:

[Jan. 09, 2019 (II)]

21
49
27
49
26
49
32
49

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