SOLUTION: A trench 5m�16m and 0.75m deep is dug. The earth taken out is spread uniformly to form a layer 12.5cm deep and 4m wide. What is the length of the layer?

Question 1027518: A trench 5m�16m and 0.75m deep is dug. The earth taken out is spread uniformly to form a layer 12.5cm deep and 4m wide. What is the length of the layer?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
A trench 5m�16m and 0.75m deep is dug.
Volume of Trench = 5*16*0,75 = 60 m^3
The earth taken out is spread uniformly to form a layer 12.5cm
deep and 4m wide. (cuboid)
4*0.125*l =90
l= 90/(4*0.125)
length = 180 m

length of the layer 180m
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