If 2moles of electrons are required to oxidize 1 mole of unknown, what is the molarity of the unknown solution

Question

Normality: 0.638
In this experiment: MnO4- is reduced to Mn2+

Answer 1

I'm sorry but I'm confused.
If I add electrons to A that is reduction, not oxidation.
And in the experiment MnO4^- is reduced to Mn^+2 but that is a change of 5e.

Perhaps you should post the entire problem.I can't make sense of the above.