Abstract Reasoning Exercise

By Omar Castaño P.

Replace the box with the question marks (???) by one of the three on the right side (a, b, c).

ejercicio1

Analyze: In the first square the arrow points to the bottom-right corner; in the second one the arrow points to the bottom-left corner; in the third square the arrow points to the top-left one...

                                                       [+See Explanation]

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Albert Einstein's Riddle

www.juegosdelogica.com

albert-einstein

When Einstein proposed this conundrum, he said that 98% of the world's population would not be able to solve it.

The riddle reads:

There are 5 houses painted five different colors; in every one of them, there lives a person of a different nationality. These five homeowners each drink a different kind of beverage, smoke a different brand of cigar and keep a different pet.

We have the following keys:

* The Norwegian lives

in the first house.

* The person who smokes

Brends lives next to

the one who has a cat.

* The one who has a horse

lives adjacent to the one

who smokes Dunhill.

* The one who smokes

Bluemasters drinks beer.

* The German smokes Prince.

* The Norwegian lives next

to the blue house.

* The one who smokes Brends

has a neighbor who

drinks water.

* The British lives in

the red house.

* The Swedish keeps

a dog as pet.

* The Danish drinks tea.

* The green house is on

the left of the white one.

* The owner of the green

house drinks coffee.

* The person who smokes

Pall Mall has a bird.

* The owner of the yellow

house smokes Dunhill.

* The one who lives

in the centre house,

drinks milk.

And finally the question: Who owns a little fish?

[See Answer (98%)]

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Syllogisms

en.wikipedia.org

A syllogism ("conclusion," "inference"), (usually the categorical syllogism) is a kind of logical argument in which one proposition (the conclusion) is inferred from two others (the premises) of a certain form. In Aristotle's Prior Analytics, he defines syllogism as "a discourse in which, certain things having been supposed, something different from the things supposed results of necessity because these things are so".

For example:

Major premise: All humans are mortal.

Minor premise: Socrates is human.

Conclusion: Socrates is mortal. [+Read more] Top


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