Răspuns :
albe |-----|-----|-----|
mov |-----| } 72.
72 : 4 = 18 panselute mov
18 x 3 = 54 panselute albe
Verificare : 18 + 54 = 72.
mov |-----| } 72.
72 : 4 = 18 panselute mov
18 x 3 = 54 panselute albe
Verificare : 18 + 54 = 72.
x ... panselute mov
3x ... panselute albe
72 ... panselute total
----------------------------
x+3x=72 => 4x=72 => x=72/4 => x= 18 panselute mov
18*3= 54 panselute albe
3x ... panselute albe
72 ... panselute total
----------------------------
x+3x=72 => 4x=72 => x=72/4 => x= 18 panselute mov
18*3= 54 panselute albe