4. If the total output (GDP) of Ethiopia in 2007 E.C is 100 million US dollar and the lost part of capital goods in generating this national output is 9.5% of the GDP. Then find
A. The net domestic product (NDP) of the country in 2007 E.C
B. The National Income (NI) of the country if the sum of indirect taxes in 2007E.C amounts to 8% of the GDP.