In how many ways can president, vice-president, and secretary be chosen from 9 students?

Question

Mathematics

Isis Lynch

20 July, 03:04

In how many ways can president, vice-president, and secretary be chosen from 9 students?

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Answers (2)

Know the Answer?

Chicken Legs · Answer 1

Step-by-step explanation:in how many ways can a president, vice president, and a secretary be chosen? ... is it 12X11X10. Permutation of n things taken r at a time: nPr=n! / (n-r) ! 12P3=12*11*10*9!/9! = 12*11*10=1320 ways.

Morgan Wang · Answer 2

The answer is 27

Step-by-step explanation:

This is because each person can have up to three roles, and there are 9 students. So you can form an array, or a table to show your values. so if you have 9 rows and 3 coulombs and you can have 27 crosses in the array.