Mathematics, 01.11.2019 22:31, xojade

En un tablero hay cinco filas de lamparitas. en la última fila se prenden el doble de lamparitas que en la primera y entre dos filas
consecutivas la diferencia de lamparitas prendidas es de dos. ¿cuántas lamparitas encendidas hay en el tablero?

Answers: 2

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En un tablero hay cinco filas de lamparitas. en la última fila se prenden el doble de lamparitas que...