Estimating and Costing
In long and short wall method of estimation, the length of long wall is the centre to centre distance between the walls and

Half breadth of wall on each side
None of these
Breadth of the wall
One fourth breadth of wall on each side

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Estimating and Costing
In the mid-section formula

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

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