Sunday, 26 January 2014

Euler Piruleta Vs. The 2€ Coin

Euler Piruleta was once a rascal and he didn’t manage to obtain his ESO degree. Now he has been threatened that he will be expelled of Matfor if he doesn’t pass the only exam he failed that time: Similarity and Trigonometry!  

Since this is now your area of expertise, can you help Euler to solve this problem?

How far do we have to place a 2 coin from our eye to completely cover the Moon?

The information below is everything you will need to solve it:
-         Moon’s Diameter: 3476 Km
-         Distance Moon-Earth: 384.000 Km
-         Coin’s Diameter: 28 mm

Tip: you know how this works draw the situation described and you will be able to solve the problem! :D

You will get 20 coins if you send the right answer and 20 extra coins if you explain how you got the code!

Printable Version available!

Deadline: February the 9th.

PS: Cesar Romero and TaniaPopcorn have received 40 coins and TheHeadhunter 20 for the solution of the previous challenge!

This is a song I've been particularly enjoying these days...

Estelle feat. Kanye West - American Boy



Sunday, 12 January 2014

Euler Piruleta Vs. The Box

Euler Piruleta feels exhausted after those past two ordeals he went through (the zombies and all that stuff). Luckily enough for him, he had a great Christmas time with his family (some strange fellows though).

His grandfather knows he keeps risking his life to help the people of Maftor, so he decided to give him his invisibility cloak he once had stolen from Harry Potter.



Everything seems quite straightforward so far, but Euler’s grandfather is some sort of a joker and thus he set a lock in the magic box. Euler must get the code to open it if he wants to retrieve the invisibility cloak trapped inside!

The code is formed by the 10 numbers which should be written in the sentence below in such way that it makes sense (including the numbers written in the gaps!)

In this sentence the number of times the 0 appears is ___ , the 1 is ___ , the 2 is ___ , the 3 is ___ , the 4 is ___ , the 5 is ___ , the 6 is ___ ,
the 7 is ___ , the 8 is ___ and  the 9 is ___ .

That is, you have to complete those 10 gaps using numbers from 0 to 9 (which can be repeated) to get a coherent sentence. For example, if you use only the number 1:

In this sentence the number of times the 0 appears is 1 ,
the 1 is 9 , the 2 is 1 , the 3 is 1 , the 4 is 1 , the 5 is 1 ,
the 6 is 1 , the 7 is 1 , the 8 is 1 and  the 9 is 1 .

It would be wrong because you can find 2 numbers 9 in the sentence and not 1!!

Help poor Euler to get his invisibility cloak!!

You will get 20 coins if you send the right answer and 20 extra coins if you explain how you got the code!

Printable Version available!

Deadline: January the 26th.

PS: Jorge Stark, Cesar Romero, Popcorn and Headhunter have received 40 extra coins thanks to the last challenge!

Palanquilla's Song: You probably don't know who Leonard Cohen is and I guess you will not like his music (but you will in the forseeable future, trust me). Anyway, if you play this song and wait to the position 04:26 you'll hear Palanquilla's fake laughter.


Leonard Cohen - First We Take Manhattan

Sunday, 8 December 2013

Batman (ivan) wants to sell

Maybe you know that the E-Potion and the T-Potion cost now 260 coins.
I want an E-Potion but I think I don't need my T-Potion, so the first person who read that and want a T-Potion can ask me because I sell mine for 250 coins, yes, only 10 coins cheaper, but they are 10 coins so if you want buy it

*This offer is only available for today sunday 8th and for tomorrow monday 9th*

Saturday, 30 November 2013

Euler Piruleta Vs. The Evil Rangers and Their Megazords

Although we have tried to contain it, the Sumatra Virus evolved and mutated and it got to Japan.  You know what happens in Japan they are fond on robots, samurais and all that stuff, thus the virus turned the population into Evil Power Rangers and Evil Megazords. 

The only person who seems immune to the virus is Hiroki-San, an elderly grandpa who lives in the mountains. He is determined to end the chaos Japan is living in, but he needs time to think thoroughly about a schem. The first think he needs to do is reinforcing his own house with anti-Zord mines, one per square meter.

Unfortunately, he doesn’t know the surface of his land, he only has a blueprint. He wonders how can I get the surface of my land with only this blueprint?. Suddenly, something rings the bell and he remembers that decades ago he had learnt a way to obtain the surface of a triangle knowing only the lengths of its sides: Heron Formula. Quickly, he looks through his notes and finds a piece of paper with it!

   

                             SCALE:    1 : 200

a)      Can you help Hiroki-San to get the surface of his land?

b)     How many anti-Zord mines will he have to use to prevent his home from being assaulted?

TIPS:  You have to print the pdf version to get the blueprint. Use a ruler to measure the lengths. Don’t forget you’ll have to use the scale at some point to get the surface of the real land, and not the surface of the blueprint.

Printable version available.
Deadline: December the 15th 

Let's honor the real and almignthy power rangers who gave my generation endless hours of (repeatedly and relentlessly the same) fights and adventures.

Original Opening 1991


Morphing and UltraMegaZord

And prior to the Power Rangers (you would have never heard about them) there were the BIOMAN (1988), only three warriors from japan:

Bioman 1988 Spanish Opening

León Meteoro! Delfín Luchador! Aeorocondor!! <3

PS: I cannot correct the previous challenge because I forgot your written answers are in the High School. I'll tell you on wednesday!

PS: Alberto, Iñaki G, Jorge and Ivan have 2 positives (that is 40 extra coins!!!) and Miguel ahas 1 positive (20 coins) thanks to the previous challenge. Congratulations! :D

Sunday, 17 November 2013

Euler Piruleta Vs. The Braindead-Zombies

A virus from Sumatra has been introduced in a small village by an infected rat. This despicable virus turns people and animals into evil-hilarious zombies.


Fortunately, the militaries have managed to confine the civilian zombie population into a piece of land delimited by an iron fence.


However, these monstrous creatures ought to be exterminated to prevent the infection being spread all over the Earth!!

The clock is ticking!

a)  Can you calculate how many meters of titanium fence do they need to use to surround the land (to reinforce the iron fence)?

b)  Once the land is secured, it is vital to calculate its surface to produce the poisonous gas that will eradicate these evil creatures once and for all.

TIPS:  Circumference’s surface:

         Circumference’s length:

        Notice that the curved lines which join opposite vertices of a square have the 
       shape of a circumference:

Deadline: November the 28th.
Printable version available.

The idea of this challenge comes from the great Peter Jackson's 1992 film "Braindead", starring the aunt of my beloved friend and amazing Maths teacher Maria whom I would like to dedicate this crazy challenge :P Even the trailer is hilarious!


Nevertheless, if you would like to try something that is not so related to human organs, "Full Metal Alchemist Brotherhood" is probably one of the best anime series of the last few decades:


PS: Jorge, Alberto, Juan and Iñaki G handed the right solution to the last challenge!

Friday, 8 November 2013

Euler Piruleta Vs. ChairCher

ChariCher is the result of an unsuccessful fusion between Matfor’s legendary music Diva Cher and one chair from her office. The result is a monster who has prepared a single that will blow up Matfor inhabitants’ tympanums.



The only way to dismantle that single radio broadcast is placing the numbers from 1 to 12 in the panel below in such way that every four numbers aligned sum up always the same quantity.



Can you get the right configuration of numbers from 1 to 12 verifying that the addition of any 4 aligned numbers gives always the same result?


Deadline: November the 15th
Printable Version available.

As I told you, ChairCher is the only living artist who had 6 number 1 hits in 6 different decades. If you have a look at the videos below, you will see that the evoluation is quite interesting... :P

1960s: I got you babe

1970s: Gypsys, Tramps and Thieves

1980s: If I could turn back time

1990s: Believe

2000s: A different kind of love song

2010s: You haven't seen the last of me

Have a nice weekend!!!

PS: Alberto, Carlos, Gómez, Iván, Verónica, Leyre G, Miguel, Tania and Manu have extra coins due to the last challenge!


Sunday, 27 October 2013

Euler Piruleta Vs. Robotnic

Robotnic has been promoted and he is now the head ruler of Matfor’s Bank. Euler needs to get his money out of the bank to buy a new surfboard since the one he had did not survive to the last summer.


The problem Euler finds is that Robotnic has been messing with the Bank’s software and now he would only get his money if he manages to introduce in the mobile app the 4-number code verifying the 4 conditions below:


Can you get the right combination of numbers ABCD that would unlock Euler’s Money?

Printable Version available!

Deadline: November the 2nd.

Have a look at the outrageously tacky clothes of who is considered the most successful spanish singer from the 80's. Unfortunately, he had a tragic and premature death when he was only 41 years old:
Tino Casal - "Eloise"

PS: Alberto, Jorge, Iván, María G, Iñaki G and Miguel deserve last challenge's positive.