GAME: MindTrap

I think this one's been asked before, but I like it.


Pete Polyester is a used car salesman. He sold half his cars plus one more to his first customer of the day.

To the second customer, he sold half of the remainder plus one more.

To the third customer, he sold half the remainder plus one more; and to the fourth customer, he sold half the remainder plus one more.

Pete was now the proud salesman on an empty car lot.

How many cars did Pete have for sale at the start of this fantastic day?



__________
Thirty.
The trick is to work backwards. On his fourth and final sale he sells half of his remainder plus one more, leaving him with zero. Therefore we know that he sold one plus one more on the fourth sale. On the third sale he sold half of six, plus one more which left him with two for the fourth sale. On the second sale he sold half of 14 plus one more which left him with six for the third sale. Therefore, on the first sale he sold half of 30 plus one more which left him with 14 for the second sale.

Quote:

---

Originally Posted by GrandDad

9 ? explain please :)

---

Quote:

---

Originally Posted by notorious_carl

how can she meet or pass a those 5 extra trains, if four are behind her and she is on one.

---

Check ou the explanation. ;)

Quote:

---

Originally Posted by a d e p t

I think this one's been asked before, but I like it.


Pete Polyester is a used car salesman. He sold half his cars plus one more to his first customer of the day.

To the second customer, he sold half of the remainder plus one more.

To the third customer, he sold half the remainder plus one more; and to the fourth customer, he sold half the remainder plus one more.

Pete was now the proud salesman on an empty car lot.

How many cars did Pete have for sale at the start of this fantastic day?

---

30 cars.
1st = Half of 30 + 1 = 14
2nd = Half of 14 + 1 = 6
3rd = Half of 6 + 1 = 2
4th = Half of 2 + 1 = 0

Quote:

---

Originally Posted by Deity

30 cars.
1st = Half of 30 + 1 = 14
2nd = Half of 14 + 1 = 6
3rd = Half of 6 + 1 = 2
4th = Half of 2 + 1 = 0

---

Even when in an alcohol-induced stupor you still manage to answer correctly! https://forums.windrivers.com/images.../2005/03/1.gif


3 pts.



Thats "pts" for "points", not "pints".

Quote:

---

Originally Posted by a d e p t

Even when in an alcohol-induced stupor you still manage to answer correctly! https://forums.windrivers.com/images.../2005/03/1.gif


3 pts.



Thats "pts" for "points", not "pints".

---

Who bothers with pints?!? Just pass the fifth.

Quote:

---

Originally Posted by a d e p t

Check ou the explanation. ;)

---

i understand know since they are heading towards each other she will pass one every 30 minutes instead of every hour. makes since know.

That Abdullah is one rich Arab," muttered Ali Bubba. "As a matter of fact, he owns 100 or more camels." "Not a chance," replied Ishmael, "I know for certain he owns fewer than 100 camels." Farouk joined in, "Well let us put it this way, he owns at least one camel."

If only one of their statements is true, how many camels does Abdullah own?



__________
Abdullah doesn't own any camels.
If the first statement is true, then so is the last statement, which cannot be, since there is only one true statement. Also, if the last statement is true, then so is the second statement. Since we know that two statements cannot be correct, we can disregard both the first and the third statements. This leaves us with only the middle statement. If Abdullah owns any camels at all, it will make the third statement correct, so the only number of camels that Abdullah can own is zero.

Quote:

---

Originally Posted by a d e p t

That Abdullah is one rich Arab," muttered Ali Bubba. "As a matter of fact, he owns 100 or more camels." "Not a chance," replied Ishmael, "I know for certain he owns fewer than 100 camels." Farouk joined in, "Well let us put it this way, he owns at least one camel."

If only one of their statements is true, how many camels does Abdullah own?

---

he owns 0, which would make the statement he owns fewer than 100 true. if he owned more than 100 it would make statement 1 and 3 true. if he own any amount from 1 to 100 it would make statement 2 and 3 true

Quote:

---

Originally Posted by a d e p t

That Abdullah is one rich Arab," muttered Ali Bubba. "As a matter of fact, he owns 100 or more camels." "Not a chance," replied Ishmael, "I know for certain he owns fewer than 100 camels." Farouk joined in, "Well let us put it this way, he owns at least one camel."

If only one of their statements is true, how many camels does Abdullah own?

---

I know for certain he owns fewer than 100 camels

Damn...

Quote:

---

Originally Posted by notorious_carl

he owns 0, which would make the statement he owns fewer than 100 true. if he owned more than 100 it would make statement 1 and 3 true. if he own any amount from 1 to 100 it would make statement 2 and 3 true

---

Good call.

3 points. ;)

Quote:

---

Originally Posted by Ya_know

Damn...

---

Things can get pretty competitive at times in here. ;)

Did you know that if a cork is put into a glass of water, the cork will never stay in the centre of the glass but will invariably drift to the side?

There is, however, a simple way to make the cork float, and remain, in the centre of the glass.

What is it?


__________
Put more water in the glass after placing the cork in it, so that that the water is slightly curved, being higher in the center of the glass than around the edges. The cork, since it floats, will float to the highest point in the water.

Quote:

---

Originally Posted by a d e p t

Did you know that if a cork is put into a glass of water, the cork will never stay in the centre of the glass but will invariably drift to the side?

There is, however, a simple way to make the cork float, and remain, in the centre of the glass.

What is it?

---

Put more water in the glass after placing the cork in it, so that that the water is slightly curved, being higher in the center of the glass than around the edges. The cork, since it floats, will float to the highest point in the water.

Quote:

---

Originally Posted by Machodkis

Put more water in the glass after placing the cork in it, so that that the water is slightly curved, being higher in the center of the glass than around the edges. The cork, since it floats, will float to the highest point in the water.

---

All right, fess up.

How did you know this? https://forums.windrivers.com/images.../2005/03/1.gif