Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Ten persons, âmongst wh ơ m are 
and 
to spealk ât a function. The number of ways in which itcan be done if 
wants to speak before 
and 
wants to speak before 
is 
. Find 
.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
6
For 
to speak in order of alphabets, 
places out of 
may be chosen first in 
ways.The remaining 
persons can speak in 
ways. Hence, the number of ways in which all the 10. persons can speak is 
.
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