Workers digging a jump pit in the schoolyard. The pit has a cuboid shape with a length 12 m, a width of 20 dm, and a depth of 36 cm. They excavate 0.4 cubic meters of soil an hour. How much time (hours and minutes) is need to excavate this pit?


x = 21:36 h Wrong answer

Step-by-step explanation:

V=abc=1220.36=8.64 m3 x=V/0.4=21.6 h=21:36 h

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