Question
To paint a 250 m wall, a number of workers were employed. If the wall were 30 m longer, 9 more workers would be needed. How many were employed at the beginning?
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Answer to a math question To paint a 250 m wall, a number of workers were employed. If the wall were 30 m longer, 9 more workers would be needed. How many were employed at the beginning?
Timmothy
4.888 Answers
Según la información proporcionada, si el muro fuera 30 m más largo, se necesitarían 9 trabajadores más. Esto significa que el número de trabajadores necesarios para pintar una pared de 280 m sería "x + 9".
Podemos establecer una proporción para resolver el problema:
250 m / x trabajadores = 280 m / (x + 9) trabajadores
Para resolver esta proporción, podemos multiplicar de forma cruzada:
250(x + 9) = 280x
250x + 2250 = 280x
2250 = 30x
x = 75
Por lo tanto, inicialmente se emplearon 75 trabajadores para pintar la pared de 250 m.
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