Question

Cati muncitori pot termina o lucrare in 3 zile , daca 6 muncitori efectueaza lucrarea in 9 zile ?

Answer 1

x m....i.p......3z
6 m...............9z 

x=$\frac{9*6}{3} = \frac{54}{3} =18 m$

Answer 2

6 m....9zile
x m.....3zile
INVERS PROPORTIONALE
x=9 * 6/3=>
=>9*2
x=18