Excavation 7913

The excavator dug an excavation measuring 10mx20m and 30 cm deep. How many tons of stone does it need to load it?

Correct answer:

m =  139.8 t

Step-by-step explanation:

a=10 m b=20 m c=30 cm m=30:100  m=0.3 m  V=a b c=10 20 0.3=60 m3  h=2330 kg/m3  m1=h V=2330 60=139800 kg m=m1 t=m1:1000  t=139800:1000  t=139.8 t=139.8 t

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