Question

There are 12 students in a social studies class. three students will be selected to present their term projects today. in how many different orders can three students be selected? 1,320 220 504 36

Answer 1

The correct answer is:

1320.

Step-by-step explanation:

This is a permutation of n objects taken r at a time.

In this case, n is 12 and r is 3.

The formula is:

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Answer 2

As, If the order is important then we use permutation;

total no. of students= 12
selected students= 3

12P3= 12!/(12-3)!=1320