﻿ Ten persons, amongst whom are A, B and C, are to speak at a function. If n is the number of ways in which it can be done if A wants to speak before B, and B wants to speak before C find n/800. : Kaysons Education

Ten Persons, Amongst Whom Are A, B and C, Are To Speak At A Function. If n is The Number Of Ways In Which It Can Be Done If A wants To Speak Before B, and B wants To Speak Before C Find n/800.

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Question

Solution

Correct option is

756

Places for AB and C can be chosen in 10Cways. The remaining 7 persons can speak in 7! Ways.

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