Three people get a motel room. Each is charged $10.00 ( 3 x 10 = $30.00 )

The desk clerk figures he has over charged them by $5.00 and tells them so.

They decide that the 3 people will be refunded a $1.00 each and the clerk will

keep the other $2.00 ( 3+2 = 5 ). So each person actually only paid $9.00

instead of the $10.00. Right ? 3 x $ 9.00 = $ 27.00 and the $2.00 the clerk

kept =$29.00.... Suddenly a Dollar go's missing.

Go Figure

The desk clerk figures he has over charged them by $5.00 and tells them so.

They decide that the 3 people will be refunded a $1.00 each and the clerk will

keep the other $2.00 ( 3+2 = 5 ). So each person actually only paid $9.00

instead of the $10.00. Right ? 3 x $ 9.00 = $ 27.00 and the $2.00 the clerk

kept =$29.00.... Suddenly a Dollar go's missing.

Go Figure

The proper sum would have been 30 - 5 = 27 - 2 = 25. Nothing is missing.

- RichardPrice
**Posts:**4474**Joined:**

The extra dollar never existed.

The original amount is $30.

The room is $25.

The 'pocketed amount' is $2.

The refunded amount is $3.

$9 x 3 = $27

The amount the Clerk pockets is within the $9 paid, the $3 given back makes the total up to $30, the $2 is deducted from the $27 not added to make the $25 room cost.

The original amount is $30.

The room is $25.

The 'pocketed amount' is $2.

The refunded amount is $3.

$9 x 3 = $27

The amount the Clerk pockets is within the $9 paid, the $3 given back makes the total up to $30, the $2 is deducted from the $27 not added to make the $25 room cost.

I still only paid $9.00 . as the other two people did . I started with $10.00 and I got a dollar back. I'm happy only pay in $9.00 .

Try it around a table and use tooth picks , or matches , or stir sticks.

count them as you pass them back and forth.

It's all in interpretation. Logic ? maybe. numbers don't lie ............ right

Try it around a table and use tooth picks , or matches , or stir sticks.

count them as you pass them back and forth.

It's all in interpretation. Logic ? maybe. numbers don't lie ............ right

- RichardPrice
**Posts:**4474**Joined:**

Quoting Rufruf (Reply 4):
It's all in interpretation. Logic ? maybe. numbers don't lie ............ right |

Actually, in the puzzle given in your original post, numbers do lie.

You say that the three people get $1 each back, and the motel clerk pockets $2.

Then you say that $10 - $1 = $9. Thats reasonable enough.

However, in that $9 is a cut of the $2 the Clerk keeps, so to add it on later ($27 + $2 = $29) is wrong because its already counted in the running total. What should be added on is the three $1 refunds, which takes the total up to $30 as expected.

Nothings missing, the puzzle as given is basically incorrect on purpose in order to provide the problem stated.

The real question is - what are three people doing with a motel room together? Why havent I been invited?

[Edited 2006-11-12 18:10:50]

It's a trick with the wording.

Richard pretty much explaind it, but to add to it, the three really paid £0.66 each I think of the new amount to contribute to the extra them gave away.

Richard pretty much explaind it, but to add to it, the three really paid £0.66 each I think of the new amount to contribute to the extra them gave away.

- CastleIsland
**Posts:**3212**Joined:**

All I can say is that this sounds like an "hourly rate" at a sleazy motel in a bad part of town.

"People don't do what they believe in, they just do what's most convenient, then they repent." - Dylan

- futuresdpdcop
**Posts:**1226**Joined:**

Quoting CastleIsland (Reply 9):All I can say is that this sounds like an "hourly rate" at a sleazy motel in a bad part of town. |

Is this first hand knowledge or....?

BLEH! what an easy question!

how about you figure this one out:

f(x) = 3cos3x

f'(x) = ???

f''(x) = ???

f'''(x) = ???

now find the mclaurin series of f(x) up to x^3!!!

how about you figure this one out:

f(x) = 3cos3x

f'(x) = ???

f''(x) = ???

f'''(x) = ???

now find the mclaurin series of f(x) up to x^3!!!

please relax, enjoy your flight... Good Luck!!

- CastleIsland
**Posts:**3212**Joined:**

Quoting FutureSDPDcop (Reply 10):Is this first hand knowledge or....? |

That depends on what city we're talkin' 'bout.

"People don't do what they believe in, they just do what's most convenient, then they repent." - Dylan

We spent a whole period in economics talking about this problem...

A guy asks 'What's Punk?'. I kick over a trash can and its punk. He knocks over a trash can and its trendy.

- iamcanadian
**Posts:**704**Joined:**

Quoting Shinkai (Reply 11):f(x) = 3cos3x
f'(x) = ??? f''(x) = ??? f'''(x) = ??? |

f'(x) = -9sin(3x)

f''(x) = -27cos(3x)

f'''(x) = 81sin(3x)

Quoting Shinkai (Reply 11):now find the mclaurin series of f(x) up to x^3 |

What is a Mclaurin series?

Shut up and calculate.

- RichPhitzwell
**Posts:**1285**Joined:**

Quoting Dan2002 (Reply 13):
We spent a whole period in economics talking about this problem... |

Are you serious? A simple division vs multiplication problem?

Here is one for ya what is a 30% markup of $100

$130

or

$142.85

Warning, becomming drunker by the sip.

[Edited 2006-11-13 05:37:38]

Nonav.com kinda like Whiners except the lights are on and the pimps been paid

Hell I was just bringing up a point . Jessss Sorry I brought it up.

Never mind

But three investors invest 3 million dollars ...and the accountant takes 2 million.. and the ......

Never mind

But three investors invest 3 million dollars ...and the accountant takes 2 million.. and the ......

30% markup of $100 is 130 because the markup is **of 100**.

But if you say that "sales have fallen 30% this year, to 100", then it means that last year the sales were 142.85.

Easy.. as well the initial problem, which was a trap for really "unmathematical" people only

Kay

But if you say that "sales have fallen 30% this year, to 100", then it means that last year the sales were 142.85.

Easy.. as well the initial problem, which was a trap for really "unmathematical" people only

Kay

f'(x) = -9sin(3x)

f''(x) = -27cos(3x)

f'''(x) = 81sin(3x)

http://mathworld.wolfram.com/MaclaurinSeries.html

That's what the Maclaurin Series is. So since we have

f(x) = 3cos(3x)

f'(x) = -9sin(3x)

f''(x) = -27cos(3x)

f'''(x) = 81sin(3x)

The Maclaurin series is till x^3 is as follows:

3 - 15.5x^2

The coefficient of x^3 is zero since sin 0 = 0 thus the answer stops there.

Pretty simple if you ask me, it's just substituting values into equations. Requires no brains!

Now Shinkai here is a question for you. You took SIA from Singapore to Perth in 2001. When you changed planes in Singapore to catch the flights to Perth, You thought you were in:

1)Asia

2)Europe

3)Mars

4)A Hotel Room with 3 Men

f''(x) = -27cos(3x)

f'''(x) = 81sin(3x)

http://mathworld.wolfram.com/MaclaurinSeries.html

That's what the Maclaurin Series is. So since we have

f(x) = 3cos(3x)

f'(x) = -9sin(3x)

f''(x) = -27cos(3x)

f'''(x) = 81sin(3x)

The Maclaurin series is till x^3 is as follows:

3 - 15.5x^2

The coefficient of x^3 is zero since sin 0 = 0 thus the answer stops there.

Pretty simple if you ask me, it's just substituting values into equations. Requires no brains!

Now Shinkai here is a question for you. You took SIA from Singapore to Perth in 2001. When you changed planes in Singapore to catch the flights to Perth, You thought you were in:

1)Asia

2)Europe

3)Mars

4)A Hotel Room with 3 Men

Quoting DocPepz (Reply 18):Now Shinkai here is a question for you. You took SIA from Singapore to Perth in 2001. When you changed planes in Singapore to catch the flights to Perth, You thought you were in:
1)Asia 2)Europe 3)Mars 4)A Hotel Room with 3 Men |

Priceless!

But remember, Stephen Hawking doesn't do geography (geology).

I'm watching Jeopardy. The category is worst Madonna songs. "This one from 1987 is terrible".

My bad, the answer should be 3 - 13.5x^2. Not 15.5 as I said above. I did my A Levels in 2000 which was the last time I touched Maclaurin's series. Thankfully I still remember calculus though I've clearly forgotten how to do simple division. 27/2 is indeed 13.5 and not 15.5.

Its simple. Skidmarks was the clerk and tried to rip them off.

Its pathetic.

Its pathetic.

What a lot of fun !!!

Gotta love the fraction answers.

The answer is ?

Did you all have a good sleep in what ever motel you were in ?

I actually have a life .

New one ..

Which planet takes longer to circle the sun then it's day .

Gotta love the fraction answers.

The answer is ?

Did you all have a good sleep in what ever motel you were in ?

I actually have a life .

New one ..

Which planet takes longer to circle the sun then it's day .

Quoting DocPepz (Reply 18):Now Shinkai here is a question for you. You took SIA from Singapore to Perth in 2001. When you changed planes in Singapore to catch the flights to Perth, You thought you were in:
1)Asia 2)Europe 3)Mars 4)A Hotel Room with 3 Men |

i choose 1.

see you in Singapore Changi Airport this december!

please relax, enjoy your flight... Good Luck!!

- RichardPrice
**Posts:**4474**Joined:**

Actually the answer is Mercury.

Mercury takes 88 days to revolve around the sun . It's rotation ( as it spins on it's axis takes something like 288 days ). Of course we are talking about earth days.

Mercury takes 88 days to revolve around the sun . It's rotation ( as it spins on it's axis takes something like 288 days ). Of course we are talking about earth days.

- RichPhitzwell
**Posts:**1285**Joined:**

Quoting Kay (Reply 17):30% markup of $100 is 130 because the markup is of 100.
But if you say that "sales have fallen 30% this year, to 100", then it means that last year the sales were 142.85. Easy.. as well the initial problem, which was a trap for really "unmathematical" people only Kay |

It is very simple...but you can mark up both ways to come to two different profit levels and still claim to be a 30% markup. As a PM at one company we would multiply by 1.3 while at another company we would divide by .7 Its all fun and games until you retire... Funny how simple math fades as one grows beyond calculus though... Im really a retard at both, but im more likely to need a calculator for determining the 15% Tip for a $100 meal. Go figure.

Nonav.com kinda like Whiners except the lights are on and the pimps been paid

Okay... LAPLACE, anyone?! This is so fun!

Find L{f(t)} if

f"(t) + 3f'(t) - 8f'(t)=0, f(0)=1 and f'(0)=2

* L{f'(t)} =sL{f(t)} - f(0)

Theorem: L{y'(t)} = sL{y(t)} - y(0)

{y' -3y = 4e^5t

{y(0) = 6 <---initial condition

Find L{f(t)} if

f"(t) + 3f'(t) - 8f'(t)=0, f(0)=1 and f'(0)=2

* L{f'(t)} =sL{f(t)} - f(0)

Theorem: L{y'(t)} = sL{y(t)} - y(0)

{y' -3y = 4e^5t

{y(0) = 6 <---initial condition

Gravity explains the motions of the planets, but it cannot explain who set the planets in motion.

To last post

When dos a equation have a ( if ) in it ? At least in chemeistry both sides are equal ( = )

When dos a equation have a ( if ) in it ? At least in chemeistry both sides are equal ( = )

Quoting Kalakaua (Reply 28):Okay... LAPLACE, anyone?! This is so fun!
Find L{f(t)} if f"(t) + 3f'(t) - 8f'(t)=0, f(0)=1 and f'(0)=2 * L{f'(t)} =sL{f(t)} - f(0) |

An answer:

f(t) = exp(-1.5*t)*[cosh(sqrt(10.25)*t) + 3.5/sqrt(10.25)*sinh(sqrt(10.25)*t)]

Quoting Kalakaua (Reply 28):Theorem: L{y'(t)} = sL{y(t)} - y(0)
{y' -3y = 4e^5t {y(0) = 6 <---initial condition |

y = 2*exp(5*t) + 4*exp(3*t)

"I get what they call a stipend, a stipend is like money but its such as small amount they don't really call it money"