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Portada del sitio > Recursos GMAT > GMAT QUANTITATIVE QUESTION > Problem Solving Word Problems > The number of straight line miles traveled downriver in one hour by Lucy´s (...)

# The number of straight line miles traveled downriver in one hour by Lucy´s boat is 3n + 4, where n represents her fuel consumption in units/hr. Suppose that traveling x miles requires k hours at a fuel rate of 7 units/ hr, but that increasing the fuel consumption by 5 units/hr would allow Lucy to travel 40% further in 1 fewer hour. How far would she travel in k hours at a fuel rate of 10 units/hr?

Lunes 28 de agosto de 2017,

The number of straight line miles traveled downriver in one hour by Lucy´s boat is 3n + 4, where n represents her fuel consumption in units/hr. Suppose that traveling x miles requires k hours at a fuel rate of 7 units/ hr, but that increasing the fuel consumption by 5 units/hr would allow Lucy to travel 40% further in 1 fewer hour. How far would she travel in k hours at a fuel rate of 10 units/hr?

A) 8

B) 200

C) 225

D) 236

E) 272

Respuesta e
Cuál es la mejor estrategia?
Respuesta debes tener presente que según el enunciado debes formar K*(3*10 +4) = Distancia.
Te sugiero analizar la expresión que necesitas formar y dar una respuesta con un mínimo de cálculo.
Anímate es posible!
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