Which of the following sums does not equal the others?

Question

anonymous · Answer

e.mccormick · Answer

Well first, do you understand the summation notation?

anonymous · Answer

Yes, I have already taken pre-calc along with AP Calc......just looking for some help to jog my memory.

e.mccormick · Answer

Did you try solving the sums?  They are not very hard ones.

anonymous · Answer

Nah, gonna go do it right now....I remember a shortcut for this though other than solving each one.

e.mccormick · Answer

Well, there are some rules where you can transform sums.  Sort of templates.

e.mccormick · Answer

e.mccormick · Answer

It is just that with such small sum sets, I am not sure if it would make much difference.

e.mccormick · Answer

anonymous · Answer

That's exactly what I was looking for, thanks. Anyways my answer was B.

anonymous · Answer

@e.mccormick Let me know if it is wrong by any chance.

e.mccormick · Answer

Yah, the others are 14.