संशोधित अनुमान (revised estimate) को मंजूरी के लिए जमा करते समय उसके साथ निम्नलिखित में से कौन सा दस्तावेज होना चाहिए?

In determining the unit item rate for brick masonry work by rate analysis, which of the following costs must be considered?

What is the proposal an electrical estimating company submits in response to a request for information regarding an upcoming electrical project called?