Răspuns :
10 m ....... 18 zile
12 m ....... x zile
_____________
x = 18 × 10 : 12 = 180 : 12 = 15 zile ( 12 muncitori )
Buna!
10 mentori...18 zile
12 mentori....x zile
=>10xX=12x18
10X=216
X=216:10
X=21,6 zile
10 mentori...18 zile
12 mentori....x zile
=>10xX=12x18
10X=216
X=216:10
X=21,6 zile