For the following questions answer them individually
A grammar for annotating a document in a way that is syntactically distinguishable from the text, such as HTML, is ...................
A hand made paper workshop can hire 8 craftsmen by paying them Rs 400 per person per day. The 9th craftsman demands Rs 450 per day. If this craftsman is hired then all other craftsmen must be paid Rs 450. The marginal resource (labour) cost of the 9th craftsman is