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_______ = 8000
2*800 1600 = 5
(+)5.........................(-)800...........................(+)4
(-)2.........................(+)400.............................X
proceso:
X=5x400x4/2x800
simplificas tachas los ceros
5x4x4=80
2x8=16
80/16=5 respuesta: 5 viajes
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