Babygirl100018 Babygirl100018

06-06-2021
Mathematics

contestada

There are 10 students in a class. The teacher chooses 3 students to go to the
library. The order in which they are chosen does not matter. How many ways
are there to choose the students?
A. 100
B. 90
C. 720
D. 120

Respuesta :

jasongggg jasongggg

06-06-2021

Answer:

D

Step-by-step explanation:

Since the order does not matter, then it is a combination question,

So you just use the combination technique,

10C3 = 10!/(10!(10-3)!) = 120 ways

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