Question

12 muncitori termina o lucrare in 15 zile.in cate zile termina aceasi lucrare 8 muncitori

Answer 1

12 muncitori............15zile
8 muncitori................x zile             ⇒invers proportionale

12*15=8*x
180=8x|:8
x=22,5

Answer 2

12m.......15z
8m........xz
x= (8×15)/12 = 10 zile