17/1/14
| 00:07:30
Three daughters
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In this mini-video it is solved a perplexing riddle at first sight about two childhood friends and the ages of the three daughters of one of them.
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Participante: Elisa Molanes López Profesora Departamento de Estadística , Universidad Carlos IIILicencia: Copyright (Licencia propietaria)Visto: 121 veces