Question

5 muncitori termina o lucrare in 18 zile cate 8 h pe zi in cate zile pot termina 9 muncitori aceeasi lucrare daca vor lucra 10 ore pe zi

Answer 1

5 muncitori....18 z .....8h/zi
9..................?........10h/zi
5 muncitori....18 z .....8h/zi
9 muncitori.......x zile.....8h/zi
x = 5×18/9=10 zile

9 muncitori......10 zile.....8h/zi
9..................y...........10 h/zi
y = 10×8/10=8 zile