If the formation level of a highway has a uniform gradient for a particular length, and the ground is also having a longitudinal slope, the earthwork may be calculated by
A. Mid-section formula
B. Trapezoidal formula
C. Prismoidal formula
D. All the above
Answer: Option D
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yes, All three methods can be used to calculate earthwork.
Because earthwork can calculated by all three methods
Can you explain briefly please
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I can't get it properly can you please explain briefly .