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Ten persons, amongst whom are A, B and C...

Ten persons, amongst whom are A, B and C are to speak at function. Find number of ways in which it can be done if A wants to speak before B, and B wants to speak before C ?

A

`(10!)/(6)`

B

`3! 7!`

C

`""^(10)P_(3).7!`

D

None of these

Text Solution

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The correct Answer is:
A
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