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Por lo tanto; 17 = [2n + (2n + 2) + (2n + 4) + (2n + 6) + (2n + 8) + (2n + 10)] / 6;
resolvemos: 17 . 6 = 12n + 30; por lo tanto n = 6
La primera secuencia es entonces; 12, 14, 16, 18, 20, 22
La segunda secuencia es: 24, 26, 28, 30, 32, 34; su suma es 174
Su promedio es entonces 174 / 6 = 29
Saludos. Herminio
2n = 2*6 = 12
2n+2 = 12+2=14
2n+4 =12+4 =16
2n+6 =12+6 = 18
2n+8 =12+8 = 20
2n+10 = 12+10=22
(2n +2n +2+ 2n +4+2n+6+2n+8+2n+10)/6 = 17
(12n +30)/6=17
12n +30 = 17*6
12n +30 = 102
12n = 102-30
12n = 72
n = 72/12
n = 6 vamos arriba a remplazar n por 6
los siguientes son (24 +26 +28 +30 +32 +34)/6 = 174/6 =29