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Three persons A,B,C speak at a function ...

Three persons A,B,C speak at a function alongwith 7 others in a random order . The probabiltiy that A speaks before B and B speaks before C at the function is :

A

`3/10`

B

`1/6`

C

`3/7`

D

`1/3`

Text Solution

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The correct Answer is:
B
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