A cement concrete road is 1000 m long, 8 m wide and 15 cm thick over the sub-base of 10 cm thick gravel. The box cutting in road crust is
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Answer:
Explanation:
=> Here, it is given that,
length l = 1000 m
breadth b = 8 m
height h = 15 cm + 10 cm = 25 cm = 0.25 m
=> Now, Actual volume, V₁:
V₁ = l x b x h
= 1000m x 8m x 0.25m
= 2000 m³
=> Cutt-off volume, V₂:
V₂ = (1/4) * V₁ (Actual volume)
= (1/4) * 2000 m³,
= 500 m³
=> So, Box cutting in road curst = V₁ - V₂
= 2000 m³ - 500 m³
= 1500 m³
Thus, the box cutting in road crust is 1500 m³.
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