alessandro101602 alessandro101602
  • 24-06-2021
  • Mathematics
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dos caños A y B llenan juntos una piscina en dos horas, A lo hace por si solo en tres horas menos que b ¿Cuantas horas tarda cada uno separadamente?

Respuesta :

honkyuuogi
honkyuuogi honkyuuogi
  • 24-06-2021

Answer:

t² - 7 t + 6 = 0; es una ecuación de segundo grado en t. Sus raíces son: t = 6, t = 1; la segunda solución es físicamente imposible. Uno solo de ellos no puede llenar la piscina en menos tiempo que los dos juntos. Por lo tanto uno de ellos demora 6 horas y el otro 6 - 3 = 3 horas.

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