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3.4: Conexiones ocultas

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    Problema 88 Dos ancianas salieron al amanecer y cada una caminaba con una velocidad constante. Uno pasó de A a B, y el otro pasó de B a A. Se reunieron al mediodía, y continuando sin parar, llegaron respectivamente a B a las 4 de la tarde y a la A a las 9 de la tarde. ¿A qué hora era el amanecer ese día?

    Problema 89 Un barco a vapor de remos tarda cinco días en viajar de San Luis a Nueva Orleans, y toma siete días para el viaje de regreso. Suponiendo que la velocidad de flujo de la corriente es constante, calcule cuánto tiempo tarda una balsa en derivar de San Luis a Nueva Orleans.

    Problema 90 [Del Tractato d'aritmetica de Paolo dell'Abbaco] “De aquí a Florencia son 60 millas, y hay uno que lo camina en 8 días [en una dirección], otro en cinco días [en sentido contrario]. Se pregunta: Partiendo al mismo tiempo, ¿en cuántos días se reunirán?”

    Problema 91 Observe que en Problema 88 se produce la salida del sol t = 4 × 9 horas antes del mediodía, y que 4 × 9 es la media geométrica de 4 y 9. Una vez señalado esto, ¿puedes reformular tu solución al Problema 88 para resolver un problema más general?


    This page titled 3.4: Conexiones ocultas is shared under a CC BY 4.0 license and was authored, remixed, and/or curated by Alexandre Borovik & Tony Gardiner (Open Book Publishers) via source content that was edited to the style and standards of the LibreTexts platform.