200
Explicación paso a paso:
[tex]h = 400(0.75) = 300[/tex]
[tex]m = 400 - 300 = 100[/tex]
[tex]htc = 300(0.6) = 180[/tex]
[tex]hntc = 300 - 180 = 120[/tex]
[tex]mtc = 100(0.2) = 20[/tex]
[tex]mntc = 100 - 20 = 80[/tex]
[tex]pntc = hntc + mntc = 120+ 80 = 200[/tex]