The correct answer is 210.
This can be calculated using the formula for the number of ways to pick k items out of n total items, which is n! / (k!(n-k)!). In this case, n = 15 (students in the class) and k = 2 (students to be selected). So, the number of different orders in which 2 students can be selected is 15! / (2!(15-2)!) = 15*14 / 2 = 210.
There are 15 students in a social studies class. Two students will be selected to present their term projects today. In how
many different orders can two students be selected?
(1 point)
840
105
O 420
210
1 answer