Math, asked by afzmi4nda8dharna, 1 year ago

Seven different lecturers are to deliver lectures in seven periods of a class on a particular day . A, B and C are three of the lecturers. THe number of ways in which a routine for the day can be made such that A delivers his lecture before B, and B before C, is

Answers

Answered by sabicoolz
4
The number of ways in which a routine for the day can be 840
Similar questions