November 2018 1 10 Report
Es una proporcion inversal......... a mas velosidad menos tiempo tardara

entonses :

60_______40

120______x


intenemos

40/x y lo reescribimos x40

60______x

120_____40

multiplicando cruzado.


40(60) =x(120)

2400=120x

2400/120=x

20=x

tardara 20 minutos


























































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