La imaginación es más importante que el conocimiento... -Albert Einstein-

La imaginación es más importante que el conocimiento... -Albert Einstein-
La Matemática no es real, pero parece real. ¿Dónde está ese lugar?

miércoles, 9 de febrero de 2011


¿Cómo adivinar la composición de la familia de tus amigos o amigas? Necesitarás tan sólo una calculadora.

Pide a tu amigo que siga las instrucciones sin mostrarte lo que vaya tecleando:
-teclear en la calculadora el número de hermanos varones
-multiplicar por 2, sumar 3 y multiplicar por 5,
-sumar el número de hermanas y multiplicar el resultado por 10
-sumar el númer de abuelos,
-al fin, sumar 125 al resultado... y entregarte la calculadora.

A tu vez, resta 275 y aparecerá en la pantalla el número de hermanos, de hermanas y de abuelos en ese orden. Por ejemplo, si es 302, hay que leer: 3 hermanos, 0 hermanas y 2 abuelos.
¿Mágico, no te parece?

En un tesoro de quince monedas de oro, hay una moneda falsa que pesa un gramo menos que las demás. ¿Cómo descubrirla? Tienes una balanza de dos platillos, y sólo tienes derecho a tres pruebas.

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