Missing money problem

 

Three men walk into Condorito's Pizzeria in NYC and order a large pizza each. They eat their pizzas and request the check. The waiter brings the check totaling  $30 ($10 for each of the pizzas). Each of the men pay with a $10 bill for a total of $30.

The waiter goes back to the cashier and gives him the money. At this point the cashier reminds the waiter that Condorito's is having a special on three pizzas—three large pizzas for $25! So he tells the waiter to give the men $5 change.

The waiter realizes that he can't split $5 three ways so he decides to keep $2 and give them only $3 change—he gives each man $1 and pockets the other $2.

Summarizing...

The three men spent $10 each for a total of $30, but each got $1 back. The net is that each one of the men spent $9 for a total of $27 ($9 x 3) and the waiter pocketed $2.

$27 + $2 = $29

But this SHOULD add up to $30 not $29!

Where is the missing $1?

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Respuesta/Answer

The correct answer to the math challenge "What is the largest number you can write with just 3 digits?" is...

9⁹⁹ (9 to the 9th power of 9).

Work out the second and third powers first (9*9*9*9*9*9*9*9*9 = 387420489.)

Then restate as 9^387420489

 

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Más de "1s"

Y como te gustó la cosa, aquí te mando otra de "1s"

1 x 1 = 1

11 x 11 = 121

111 x 111 = 12321

1111 x 1111 = 1234321

11111 x 11111 = 123454321

111111 x 111111 = 12345654321

1111111 x 1111111 = 1234567654321

11111111 x 11111111 = 123456787654321

111111111 x 111111111=12345678987654321

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Curiosidades mate maticas en la onda de "1" etc.

(Ayuda especial para ti Vaska---->

1 x 9 + 2 = 11

12 x 9 + 3 = 111

123 x 9 + 4 = 1111

1234 x 9 + 5 = 11111

12345 x 9 + 6 = 111111

123456 x 9 + 7 = 1111111

1234567 x 9 + 8 = 11111111

12345678 x 9 + 9 = 111111111

123456789 x 9 +10 = 1111111111

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My HORRORscope for today

 Listen up brothers and sisters... this is what I have to put up with today!

"It's a complicated day with trickster Mercury in the spotlight as it forms a superconductive trine with inventive Uranus, filling our brains with erratic but possibly brilliant thoughts. Contradictions abound as an otherworldly septile connects rational Mercury with stable Saturn. Meanwhile, the discerning Virgo Moon helps us filter out extraneous thoughts. But we cannot escape the pull of our dreams as Mercury also squares imaginative Neptune."

 Seems like Uranus is seasoning my soup!!

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The Fibonacci Series

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The Fibonacci Series is a sequence of numbers first created by Leonardo Fibonacci (fi-bo-na-chee) in 1202. It is a deceptively simple series, but its ramifications and applications are nearly limitless. It has fascinated and perplexed mathematicians for over 700 years, and nearly everyone who has worked with it has added a new piece to the Fibonacci puzzle, a new tidbit of information about the series and how it works. Fibonacci mathematics is a constantly expanding branch of number theory, with more and more people being drawn into the complex subtleties of Fibonacci's legacy. 

  

Fibonacci series definition

Fi·bo·nacci series (fē′bə nä′c'hē)

a sequence of integers in which each integer (Fibonacci number) after the second is the sum of the two preceding integers; specif., the series 1, 1, 2, 3, 5, 8, 13, . . .

The Fibonacci numbers are the sequence of numbers defined by the linear recurrence equation,

 

(1)

with .

As a result of the definition (1), it is conventional to define .

The Fibonacci numbers for , 2, ... are 1, 1, 2, 3, 5, 8, 13, 21, ... 

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Una preguntita de ingenio/Quick math question

Sp: ¿Cuál es el número más grande que Ud. puede escribir con tan sólo tres dígitos?

En: What is the largest number you can write with just 3 digits?

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