Çözüldü Percentage Problem

If sixty percent of the students at a high school are males and eighty percent of them, along with forty percent of the female students, will pick an engineering major for their university educations, what is the total percentage of all those students who will be majoring in any engineering field?

A) 48
B) 52
C) 56
D) 60
E) 64

60 / 100·80 / 100 + (1 - 60 / 100)·40 / 100 = 64 / 100.

Note: A slightly different translation of a solved problem in one of the Turkish FDD (Final Dergisi Dershaneleri) publications.