OKay

Question

OKay

anonymous · Answer

I would first look at the criteria for determining if this is a combination problem or a permutation problem.  After that, it is just plugging it into your calculator (either the nPr or nCr button, depending) unless your teacher wants to see you work it symbolically.

terenzreignz · Answer

@kimimarie95 
Better to illustrate :)
In a combination, order doesn't matter...for instance
ABC, ACB, BCA, BAC, CBA, CAB
are all the same combination.

In a permutation, order DOES matter, so those 6 are counted separately :)

Which is the case for this problem?

terenzreignz · Answer

There are 10 seats in the front row (let's say) and the teacher's going to arrange 10 students there, from a set of 60...
If you seat student A in the left-most seat, is it the same as if the student A is in the right most seat, or anywhere else?

terenzreignz · Answer

That's right :)
When seating students, I should think order DOES matter :D
I think you agree ;)

terenzreignz · Answer

No problem :)

terenzreignz · Answer

I don't have a calculator with me :)
As long as you keyed in 60P10
I'll agree with it :D

sirm3d · Answer

i disagree. the 10 students are to seat in the first row, not to be arranged in the first row.

sirm3d · Answer

it does not matter if i seat in the far left or middle or far right. what is important is that i am seated in the first row.

sirm3d · Answer

i contend that this is a combination problem, not a permutation.

terenzreignz · Answer

Still, the question was how many ways, and I contend (dunno what this word means, btw)
that me seated at the left-most seat is a different 'way' than if I were seated at the right-most seat.

terenzreignz · Answer

Oh, wait...
@sirm3d 
Keyword here is ARRANGE.
surely, this implies that order is to be taken into consideration?

sirm3d · Answer

yes, i agree.

my laptop rebooted plenty of times today. i lost track of the real question.

@terenzreignz , you are right. there is the word ARRANGE in the problem.

terenzreignz · Answer

Technology nowadays :D

sirm3d · Answer

what registered to me while waiting for my laptop to reboot is how may ways can 10 students be seated in the first row. I completely forgot that important word ARRANGE.