Question

10 muncitori .................15 zile
vin 5 muncitori.............x zile​

Answer 1

10 muncitori .................15 zile

15 muncitori.............x zile

I.P.=> mai putine zile

10/15=x/15

15x=150

x=10

Answer 2

$10muncitori.........15zile \\ 15muncitori.................x \: zile \\ \frac{15}{10} = \frac{15}{x } \\ x = \frac{10\times 15}{15} \\ x = 10$