Respuestas

2012-12-03T02:35:53+01:00

X = (12 * 50)/25  = 24 h

 

X = ( 1 * 50 ) / 25 = 2 h

 

X = ( 10 * 50 ) / 25 = 20 H

 

X = ( 11 * 50 ) / 25 = 22 h