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It's algebra night, me lads, Alex intoned

as he set an empty mug on his fav table

at Morty's last night. And you might want

to bring a pencil along, this one is a wee

bit complicated.

Ian was home sick, so that left Davey and

Jamie to humor Alex. Pencils are ready,

they said, shoot!

So, Alex Jr. and I took a trip the other day,

one of us on our horse, the other in our

car. After a while, I observed that if I had

gone three times as far as I had, I would

have half as far to go as I had; and if Jr.

had gone half as far as he had, he would

have three times as far to go as he had.

By the way, we started at the same time

and place, and were headed for the same

destination. Did you get all that?

They nodded, but Davey was stroking

his beard just a little more vigorously

than usual. OK, they said, but ... what's

the question?

The question, lads is this: which one of

us rode the horse?

It took Davey only a minute to answer.

I think I know...

Do you?

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Let Alex be at a distance x and Alex Jr. at y. Let total distance be z.

Then

1. 3x + 3x/2 = z => x = 2z/9

2. y/2 + 3y/2 =z => y = z/2

Therefore assuming car is faster than the horse :) Jr. is on car

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Jr is driving the car

We have two equations, where S is the distance Alex Sr. traveled, J is the distance Alex Jr traveled, and D is the total distance to be traveled:

1/2(D-S)=D-3S

(D-1/2J)=3(D-J)

Solving, this gives S=1/5D and J=4/5D

Since Jr. traveled 4 times the distance in the same amount of time, he must be driving the car.

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The way I see it...

The way I see it:

Alex Sr. traveled 2/9 of his distance, Alex Jr. 2/7 of his.

Alex Sr. was driving his car along the road where the distance to the destination was 90 miles. Alex Jr. was riding the horse on the trail, which cut across the canyon with the total trail length 28 miles to the destination.

Alex Sr. drove for half an hour at 40 mph, Alex Jr. rode for half an hour at 16 mph.

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CR and k-man have it. ;)

imran, right answer with incorrect math - translating words to equations was the real task.

JarZe, probably answered who drove the car but didn't say which he specified. As they used to tell me in school ... show your work. ;)

preflop, :P

Prime, took the road less traveled [pun intended], as always. :)

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CR and k-man have it. ;)

imran, right answer with incorrect math - translating words to equations was the real task.

JarZe, probably answered who drove the car but didn't say which he specified. As they used to tell me in school ... show your work. ;)

preflop, :P

Prime, took the road less traveled [pun intended], as always. :)

If english is not your native language then it can happen :D

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If english is not your native language then it can happen :D

I second that.

I interpreted "... as I had" in the "I would have ... as I had" clause as the actual distance traveled -- not as the distance remaining.

In other words: "If I had gone 3 times as far as I had, I would have half as far to go as I had gone"

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