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8 muncitori executa o lucrare in 12zile dar 6 muncitori in cate zile?

Răspuns :

Folosim regula de 3 simpla:

8 muncitori ..... 12 zile
6 muncitori .....  x zile

[tex] \frac{8}{6} = \frac{12}{x} [/tex]
=> 8x = 6[tex] => x = \frac{72}{8} [/tex] => x = 9 zile
8 muncitori---------------------------12 zile
6 muncitori ---------------------------- x zile
8/6= x/ 12
6x=8*12
6x=96
x=16 zile