Va Rog 16....... Dau coroana

Răspuns:
X=suma initiala
[(x*2-5)*2-10]*2-160=200
[(x*2-5)*2-10]*2=360
(x*2-5)*2-10=180
(x*2-5)*2=190
x*2-5=95
x*2=100
x=50 lei
("*" e "ori")