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

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

answer: i believe its b. if you sound out the sentences that sounds wrong.

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