The following data relate to a closed economy of a country where all production takes place in two firms. Use the information in the table to answer the que...

The following data relate to a closed economy of a country where all production takes place in two firms. Use the information in the table to answer the questions that follow:

(a)(i) Which of the items listed above is an intermediate input?
(ii) What happens to intermediate inputs in the calculation of the national income?
(iii) Calculate the Gross Domestic Product (GDP) of the country.

(b)(i) Calculate the total amount of depreciation of the country
(ii) Calculate the Net Domestic Product of the country.