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Anurn contains 6 red,4 blue ,2 green and 3yellow marbles If two marbles are picked at random , what is the probability that either both are green or b

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Anurn contains 6 red,4 blue ,2 green and 3yellow marbles If two marbles are picked at random , what is the probability that either both are green or both are yellow? A. `(5)/(91)` B. `(1)/(35)` C. `(1)/(3)` D. `(4)/(105)` Select the correct answer from above options

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Correct Answer - D Number of ways of selecting either two green marbles ir two yellow marbles `=""^(2)C_(2)+""^(3)C_(2)=1+3=4` Number of ways of selecting 2 marbles`=""^(15)C_(2)=105` Required Probability =`(4)/(105)`

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