SERVING THE QUANTITATIVE FINANCE COMMUNITY

• 1
• 2

Collector
Topic Author
Posts: 4421
Joined: August 21st, 2001, 12:37 pm

### Optimal solution please

Cuchulainn
Posts: 61155
Joined: July 16th, 2004, 7:38 am
Location: Amsterdam
Contact:

### Re: Optimal solution please

Can you choose any one? Can I trust intuition? Do you want a quick answer or a slow answer?

It reminds me of

A bat and a ball together cost \$1.10. The bat costs one dollar more than the ball. How much does the ball cost?
Last edited by Cuchulainn on February 5th, 2019, 4:56 pm, edited 2 times in total.
http://www.datasimfinancial.com
http://www.datasim.nl

Every Time We Teach a Child Something, We Keep Him from Inventing It Himself
Jean Piaget

neauveq
Posts: 10
Joined: May 28th, 2018, 10:25 pm

### Re: Optimal solution please

My guess would be option e.

FaridMoussaoui
Posts: 507
Joined: June 20th, 2008, 10:05 am
Location: Genève, Genf, Ginevra, Geneva

### Re: Optimal solution please

number of elements in each figure (tri + quad):

4 5 5
7 8 8
4 5 x
x should be 5 so choose between b & d. Then maybe d as on every line, there are only 2 vertices at the centre.
Last edited by FaridMoussaoui on February 5th, 2019, 5:13 pm, edited 1 time in total.

Collector
Topic Author
Posts: 4421
Joined: August 21st, 2001, 12:37 pm

### Re: Optimal solution please

"Can I trust intuition?"

in your case yes! Judo intuition!

trackstar
Posts: 27024
Joined: August 28th, 2008, 1:53 pm

### Re: Optimal solution please

c because it best shows the end result of a process of rotating, shifting, and reflecting the original lines.

Looks like 1 transformation of each type is "allowed" and the reflection seems to take place across the longest straight line in each example.

Have to look at it some more though.

Paul
Posts: 10073
Joined: July 20th, 2001, 3:28 pm

### Re: Optimal solution please

Robert Harbin’s “Origami Book 3,” p. 25 “Crouching Samurai.”

And it’s e. The fold which creates the sword of the Samurai.

Collector
Topic Author
Posts: 4421
Joined: August 21st, 2001, 12:37 pm

### Re: Optimal solution please

It was a quant-friend sending me this question, here is the answer I sent in return

and now she do not return my emails, why?
Last edited by Collector on February 5th, 2019, 5:40 pm, edited 3 times in total.

trackstar
Posts: 27024
Joined: August 28th, 2008, 1:53 pm

### Re: Optimal solution please

you have a few typos there...
Last edited by trackstar on February 5th, 2019, 5:37 pm, edited 1 time in total.

trackstar
Posts: 27024
Joined: August 28th, 2008, 1:53 pm

### Re: Optimal solution please

This is the Brainteaser forum and has its own etiquette.

But I will point the typos out to you.

waist - you mean waste time.  But that is ok.

Ah the second typo has been corrected.  Very good.

But I still have to go to a Math class now.

Collector
Topic Author
Posts: 4421
Joined: August 21st, 2001, 12:37 pm

### Re: Optimal solution please

that is why one need the sword of the Samurai, to cut off the typos! It was a double puzzle ? an answer within the answer?

trackstar
Posts: 27024
Joined: August 28th, 2008, 1:53 pm

### Re: Optimal solution please

Add the funny little picture of Einstein and it is really a multi-dimensional puzzle!

One way to help solve the line drawing puzzle is to reconstruct each drawing using colored pencils - a different color for each continuous line.

Then see how you can work with those lines - rotate, mirror-reflect, shift, to form the next image in the sequence.

At least this is how I think about it.

Could be completely wrong and the real answer is waiting on a different plane...

**

and yes, typos can be like "Freudian slips"- funny little verbal mistakes that reveal more than what one had intended.

Can be very entertaining though, in any language.

Collector
Topic Author
Posts: 4421
Joined: August 21st, 2001, 12:37 pm

### Re: Optimal solution please

I remember my Judo trainer demonstrated defense against someone with Samurai Sword, quiet impressive! karate better? trust intuition!

Cuch, how is your Samurai defense?

Cuchulainn
Posts: 61155
Joined: July 16th, 2004, 7:38 am
Location: Amsterdam
Contact:

### Re: Optimal solution please

We use Ju no Kata (samurai are slow in heavy armour).. My senseis Rob and Maarten.

Origami is for pensioners.
http://www.datasimfinancial.com
http://www.datasim.nl

Every Time We Teach a Child Something, We Keep Him from Inventing It Himself
Jean Piaget

Collector
Topic Author
Posts: 4421
Joined: August 21st, 2001, 12:37 pm

### Re: Optimal solution please

Origami is for pensioners.

Wilmott.com has been "Serving the Quantitative Finance Community" since 2001. Continued...

 JOBS BOARD

Looking for a quant job, risk, algo trading,...? Browse jobs here...

GZIP: On