[Archive!] Pure mathematics, physics, chemistry, etc.: brain-training problems not related to trade in any way - page 519

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Task condition:

25% option - 50% probability of selection

50% option - 25% probability of selection

Option 60% - 25% probability of selection

Task question:

Is there a percentage match?

The answer to the problem question:

There are no matches.

 
In the end, though, these things are more matters of taste and philosophy than they are mathematics. In mathematics We generally prefer to play it safe and completely refuse to work with explicitly self-referential statements. This avoids the risk of paradox, and does not seem to hinder mathematical arguments about the things mathematicians are ordinarily interested in. So whatever one decides to do with the question-about-itself, what one does is not really mathematics.
 

Mathemat:

So whatever one decides to do with the question-about-itself, what one does is not really mathematical.

On that calming note, we can end this question.

But start with something else :)

 
 
drknn:

Could be U=8; D=1; A=2; P=6; K=5:

8126+8126=16252

 
yosuf:

Could be U=8; D=1; A=2; P=6; K=5:

8126+8126=16252


I don't know - I haven't solved it yet. :)

There is an example from the same series. It has two answers. In fact, Perelman has many such mathematical riddles.

 
drknn:


I don't know - I haven't solved it yet. :)

There is an example from the same series. It has two answers. In fact, Perelman has many mathematical riddles like this.

97072 + 7843 = 104915

97073 + 7842 = 104915

 

Help out the electrical engineers or the exam will fail.

 

 
sanyooooook:

2004-2005 school year

you are from the past o_o

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