A professor is taking attendence in a small class of 5 students. In how many distinct...
A professor is taking attendence in a small class of 5 students. In how many distinct orders could the professor call the names of the five students ?
|
a |
120 |
|
b |
60 |
|
c |
525 |
|
d |
25 |
Homework Answers
Solution:
Number of student = 5
Total available student name to call for 1st time = 5
Total available student name to call for 2nd time = 4
Total available student name to call for 3rd time = 3
Total available student name to call for 4th time = 2
Total available student name to call for 5th time = 1
Total possible distinct orders that professor call the names of the five students = 5*4*3*2*1 = 120 ways. (Option a)
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