A box contains 10 red marbles, 20 blue m...

A box contains 10 red marbles, 20 blue marbles and 30 green marbles. 5 marbles are drawn from the box.What is the probability that ( I ) all will be blue ? ( ii) atleast one will be green?

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The correct Answer is:

` =1-( 63) /( 1121) =( 1058) /( 1121) `

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SUBHASH PUBLICATION-PROBABILITY -TWO MARKS QUESTION WITH ANSWER

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