Sample Test Item 58 (2003)
Posted on December 11th, 2007 by admin
This question is testing your ability to calculate permutations.
They are asking for the number of permutations of n things taken n at a time.
Specifically, the are asking for number of ways you can arrange 6 students in EVERY order.
Mathematician use factorial notation to represent the number of possible permutations for situations like this.
There are 6 seats and 6 students. Six seats taken at six students at a time.
6P6 = 6!
6! = (6)(5)(4)(3)(2)(1)
As you can see by multiplying the first 3 factors, the only possible answer is Choice A.
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