Estimating and Costing
The rate of payment is made for 100 cu m (per % cu m) in case of

Rock cutting
Excavation in trenches for foundation
Earth work in excavation
All of these

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Estimating and Costing
The correct Prismoidal formula for volume is

D [first area + last area + Ʃ Even area + 2 Ʃ odd areas]
D/6 [first area + last area + 2 ∑ Even area + 4 ∑ odd areas]
D/3 [first area + last area + 4 Ʃ Even area + 2 Ʃ odd areas]
D/3 [first area + last area + 2 Ʃ Even area + 4 Ʃ odd areas]

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