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A bag contains 6 red and 9 blue balls. T...

A bag contains 6 red and 9 blue balls. Two successive drawing of four balls are made such that the balls are not replaced before the second draw. Find the probability that the first draw gives 4 red balls and second draw gives 4 blue balls.

A

`3/715`

B

`7/715`

C

`15/233`

D

none of these

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