For flood protection, the details for the construction of earthen embankments on either banks of a river are as follows.
Right bank: Height of embankment (above the bank level) = 4 m: length = 300 m.
Left bank : Height of embankment (above the bank level) = 3 m; length = 400 m.
If the cross-section of the embankment is trapezoidal in shape with top width 2 m, and side slope 2 : 1 (horizontal : vertical), then determine the quantity of earth required for the same.
1
43,200 m3
2
19,200 m3
3
21,600 m3
4
10,800 m3