Q.GNP at market price is ₹9,000 crore and depreciation is ₹700 crore. Find NNP at market price.

NNP is the expansion of Net National Product, so the answer is (b).

In the national-income aggregates of the Tamil Nadu HSC Commerce syllabus, NNP stands for Net National Product. It is derived from Gross National Product (GNP) by subtracting depreciation (the wear and tear / consumption of fixed capital):

NNP = GNP − Depreciation

The word 'Net' shows that depreciation has been deducted, 'National' shows it covers the income of a country's normal residents, and 'Product' shows it measures the value of output. NNP at factor cost is the same as National Income.

The other options (National Net Provident, Net National Provident, National Net Product) are not correct expansions.

GDP deflator = (Nominal GDP / Real GDP) x 100, so option (d) is correct.

The GDP deflator measures the average change in prices of all goods and services included in GDP. It is found by:

GDP deflator = (Nominal GDP / Real GDP) x 100

Nominal GDP is measured at current prices, while real GDP is measured at constant (base-year) prices. The ratio, multiplied by 100, isolates the effect of price changes. The other options wrongly use NDP, GNP or NNP instead of GDP.