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An urn contains 4 brown marbles, 5 green marbles, 2 red marbles and 3 white marbles. If 3 marbles are drawn, what is the probability all of them is green ?
5/182
4/187
12/187
10/183
Answer 5/182 Explanation : Total = 14 3 marbles drawn = 14C3 = 14*13*12/ 3*2*1 = 364 5C3 = 5*4*3/3*2*1 = 10 P = 10/364 = 5/182
By: Sandeep Dubey ProfileResourcesReport error
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