Correct option is A
The following are the common methods used to estimate buildings:
Plinth area or square meter method.
Cubic rate or cubic meter method.
Unit rate method or Service unit.
Bay method.
Cost comparison method.
Cost from materials and labour.
Approximate quantities with bill method.
Approximate quantities with bill method:
In this method, the structure is divided into:
(a) Foundation Inclusive of Plinth
(b) The Super Structure.
The cost per running meter of the foundation inclusive of the plinth is worked out and is multiplied by the total length of the foundation to determine the total cost of the foundation inclusive of the plinth
.
Similarly, the cost per running meter of the superstructure is found and is multiplied by the total length of all the walls of the superstructure to get the total cost of the superstructure.
The total cost of the structure is then obtained by the addition of total cost of foundation inclusive of plinth to the total cost of the superstructure.