Answer: D. All the above
The rate of an item of work depends on the specification of works, specification of materials, and proportion of mortar.
In Estimation and Costing, analysis of rates is very important to understand the total cost required to complete the project.
Rate of an item of work depends upon the following factors:
- Specification of material and works to know about its quality
- Quantity and cost of materials
- Labours cost and wages
- Overhead costs
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