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Anurn contains 6 red,4 blue ,2 green and 3yellow marbles If four marbles are picked at random , what is the probability that one is green , two are bl

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Anurn contains 6 red,4 blue ,2 green and 3yellow marbles If four marbles are picked at random , what is the probability that one is green , two are blue and one is red ? A. 24 455 B. 13 35 C. 11 15 D. 1 3 Select the correct answer from above options

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Correct Answer - A Number of ways of selecting one green , two blue and one red marble =2C1×4C2×6C1. =2×6×6=72 Number of ways of selecting 4 marbles from urn=15C4 = 12×13×14×15 4×3×2×1 =1365 Required probability = 72 1365 = 24 455

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