Estimating and Costing
The reduced levels of points, 30 metres apart along the longitudinal section of a road portion between chainages 5 and 9 are shown in the given figure. If there is a uniform up-gradient of the road 120 in 1, the chainage of the point with no filling or cutting is

(6 + 12) chains
(6 + 15) chains
None of these
(6 + 18) chains

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Estimating and Costing
In the mid-section formula

The area of mid-sections is calculated by using mean depth
All of these
The volume of the earth work is calculated by multiplying the mid-section area by the distance between the two original sections
The mean depth is the average of depths of two consecutive sections

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