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1h=60min
100%*3/60=100%*0,05=5%
b)
100%*36/24=100%*1,5=150%
c)
1 3/4 =1,75
80%*1,75=0,8*1,75=1,4
b) 36/24*100%=150%
c) 1 3/4* 80%= 1,4