Hola!
Rpta: 12 albañiles se tardan 25 días.
Albañiles Días
20 ------------- 15
12 -------------- x
x = 20 x 15 = 300
x = 300 ÷ 12 = 25
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Hola!
Rpta: 12 albañiles se tardan 25 días.
Albañiles Días
20 ------------- 15
12 -------------- x
x = 20 x 15 = 300
x = 300 ÷ 12 = 25