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Brain teaser

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By (user no longer on site) OP   
over a year ago

An old clattery auto is to drive a stretch of 2 miles, up and down a hill, /\. Because it is so old, it cannot drive the first mile -the ascent- faster than with an average speed of 15 miles per hour.

Question: How fast does it have to drive the second mile -on going down, it can of course,go faster- in order to obtain an average speed (for the whole distance) of 30 miles an hour?

I'll send a picture of my right big toe for the winner.

Eistein didn't figure out the solution immediately.

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By (user no longer on site)
over a year ago

Immediately I thought 45 mph. But you going to me wrong I’m sure.

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By (user no longer on site) OP   
over a year ago


"Immediately I thought 45 mph. But you going to me wrong I’m sure. "

Wrong (saying it Trump's way)

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By (user no longer on site)
over a year ago

Can i just have the toe pic anyway?

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By (user no longer on site)
over a year ago


"Immediately I thought 45 mph. But you going to me wrong I’m sure.

Wrong (saying it Trump's way) "

Did you grab my crotch when you typed that?

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By *ax1971Man
over a year ago

St helens

[Removed by poster at 23/04/18 13:20:23]

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By (user no longer on site)
over a year ago

30mph surely...

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By (user no longer on site)
over a year ago

Well if it can't drive the first mile up, it's not going to be driving down anywhere surely

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By (user no longer on site)
over a year ago

Waiting with bated breath for the correct answer

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By (user no longer on site)
over a year ago

42

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By (user no longer on site) OP   
over a year ago


"Immediately I thought 45 mph. But you going to me wrong I’m sure.

Wrong (saying it Trump's way)

Did you grab my crotch when you typed that?"

Haha I did, nice cock btw

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By (user no longer on site) OP   
over a year ago

I didn't manage to get the answer right either...but it is actually so obvious

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By (user no longer on site)
over a year ago

OP I work nights and I’m not going to be able to sleep until I know the answer! Someone get it quick!!!

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By (user no longer on site)
over a year ago

60mph?

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By *ax1971Man
over a year ago

St helens

60 mph..

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By (user no longer on site)
over a year ago

I don't think it's possible

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By (user no longer on site) OP   
over a year ago


"I don't think it's possible"

We have a winner !! It is not !

The road up is one mile long. The car travels fifteen miles per hour, so it takes four minutes (one hour (60 minutes) divided by fifteen) to reach up the top.

How long does it take the car to drive up and down the hill , with an average speed of thirty miles per hour ?

The road up and down is two miles long. Thirty miles per hours translstes into two miles per four minutes. Thus, the car needs four minutes to drive the entire distance. But these four minutes were already used up by the time the car reached the top.

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By (user no longer on site)
over a year ago


"I don't think it's possible

We have a winner !! It is not !

The road up is one mile long. The car travels fifteen miles per hour, so it takes four minutes (one hour (60 minutes) divided by fifteen) to reach up the top.

How long does it take the car to drive up and down the hill , with an average speed of thirty miles per hour ?

The road up and down is two miles long. Thirty miles per hours translstes into two miles per four minutes. Thus, the car needs four minutes to drive the entire distance. But these four minutes were already used up by the time the car reached the top."

My head hurts

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By (user no longer on site)
over a year ago


"I don't think it's possible

We have a winner !! It is not !

The road up is one mile long. The car travels fifteen miles per hour, so it takes four minutes (one hour (60 minutes) divided by fifteen) to reach up the top.

How long does it take the car to drive up and down the hill , with an average speed of thirty miles per hour ?

The road up and down is two miles long. Thirty miles per hours translstes into two miles per four minutes. Thus, the car needs four minutes to drive the entire distance. But these four minutes were already used up by the time the car reached the top."

That was my reasoning

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By *ame-room-no-swapCouple
over a year ago

Taunton

Infinity mph.

The first mile takes 4 minutes.

In order to average 30 mph, the two miles would need to be completed in 4 miutes

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By (user no longer on site) OP   
over a year ago


"Infinity mph.

The first mile takes 4 minutes.

In order to average 30 mph, the two miles would need to be completed in 4 miutes"

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By *irthandgirthMan
over a year ago

Camberley occasionally doncaster

It's impossible. The car has already taken all the time to do half the distance.

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By (user no longer on site)
over a year ago


"I don't think it's possible"

I don't think it possible either. If he needs to do it in an average of 30mph then the entire journey HAS to take 2 mins. He's already taken 4 mins to get to the top of the hill.

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By (user no longer on site)
over a year ago


"I don't think it's possible

We have a winner !! It is not !

The road up is one mile long. The car travels fifteen miles per hour, so it takes four minutes (one hour (60 minutes) divided by fifteen) to reach up the top.

How long does it take the car to drive up and down the hill , with an average speed of thirty miles per hour ?

The road up and down is two miles long. Thirty miles per hours translstes into two miles per four minutes. Thus, the car needs four minutes to drive the entire distance. But these four minutes were already used up by the time the car reached the top."

Where did the four minutes come from again?

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By (user no longer on site)
over a year ago

of course if the car is a DeLorean and travels back down at 88 mph it could arrive at any time the driver likes...

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By *ame-room-no-swapCouple
over a year ago

Taunton

4 minutes is one mile at 15 mph (up the hill )

or 2 miles at 30mp ( the whole distance )

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