Q 2453301244.     An urn contains 6 red, 4 blue and 2 green balls. 3 balls are picked at random, find the probability that all the 3 balls are of
same colour.


RRB-CLERK 2016 Mains 2001
A

`8/55`

B

`9/55`

C

`1/11`

D

`7/55`

E

None of these

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