Răspuns :
12......5
15.......x
12x=15*5
12x=75
x=75:12 si calc tu asta
x= nr de zile
15.......x
12x=15*5
12x=75
x=75:12 si calc tu asta
x= nr de zile
12 muncitori….5 zile
15 muncitori….x zile
=> 12*x=15*5 <=> 12x=75 | :12 <=> x= 6.25
15 muncitori….x zile
=> 12*x=15*5 <=> 12x=75 | :12 <=> x= 6.25