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Hola:
Este post se titula: "Paco Goes to School"

Paco vive en una finca. Su escuela se sitúa a 10
kilómetros de su casa. Cada día sale de la casa a las
7:00 am llegando a la escuela a las 8:00 am en punto.
¿Cómo se las arregla Paco desplazar 10 kilómetros en
sólo una hora? Lo hace de esta manera:
Part of the way (up to his Tio's place) is rough road.
So, he travels the distance on his donkey going at the
rate of 4 kph.
From his Tio's place all the way to school is flat land.
So, he travels this distance on his bike speeding at 16
kph. reaching school exactly one hour after leaving
the house.

La pregunta:
1. What is the distance he travels on his donkey?
2. What is the distance he travels on his bike?

Pista 1: Time of travel on donkey at 4kph.

+ Time of travel on bike at 16 kph. = 1 hour.

or

Pista 2: Distance traveled on donkey Distance traveled on bike_

4 kph + 16 kph = 1 hour.

A trabajar con aquellos calculators ! [H]
Comments  
EXLMARK 1. What is the distance he travels on his donkey?
2. What is the distance he travels on his bike?
Hola, Señor EXLMARK,
Per mi calculadora, su muchacho, Paco, se desplaza los 10 kilométros de distancia
de este modo:
1. Via su asno, 2 kilométros.
2. Via su bicicleta, 8 kilométros.
TOTAL: 10 kilométros.

FACTS of the CASE:
We assign the letter X to represent the distance traveled on his bicycle,
and 10 - X to represent the distance traveled on his ass.
Then, we apply the formula: DISTANCE divided by RATE OF SPEED = TIME spent.
Hence, we have:
a) X divided by 16kph = TIME spent via his bicycle.
b) 10 - X divided by 4kph = TIME spent via his donkey.
Therefore, the equation is: X / 16 + (10 - X) / 4 = 1

Now, we process the equation thus:
1) 0.0625X + (2.5 - 0.25X) = 1
that is, (1X/16 = 0.0625X + 10/4 = 2.5 - 1X/4 = 0.25X)
2) 2.5 - 1 = 0.25X - 0.0625X
3) 1.5 = 0.1875X
4) 1.5 / 0.1875 = X
5) 8 = X (or: X = 8)

We now solve for TIME:
a) 8 kilométers / 16kph. = 0.5 hr. (or 30 minutes) spent on his bicycle.
b) 2 kilométers / 4kph. = 0.5 hr. (or 30 minutes) spent on his donkey.
TOTAL TIME: 1 hour !

Saludos a Vd. Hasta el proximo encuentro.
Hola, Sr. Anonimo:
Tanto tiempo sin "verle" a Ud.
Gracias por haber respondido a mi post
con pelos y señales ![Y]
Espero que nos encontremos otra vez.