1.

From a heap containing 10 pairs of shoes 6 shoes are selected at random. Find the probability that (i) There is no complete pair in the selected shoes (ii) atleast one correct pair in the selected shoes (iii) 2 correct pairs in the selected shoes.

Answer»


Answer :`(i) (.^(10)C_(6)xx2^(6))/(.^(20)C_(6))`
`(II) (211)/(323)`
`(III) (42)/(323)`


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