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राष्ट्रीय आय से संबंधित समुच्चय—शुद्ध राष्ट्रीय उत्पाद (NNP)
This Class 12 Economics topic, part of the chapter “National Income and Related Aggregates,” explains Net National Product (NNP) as the value of final goods and services produced by a country’s normal residents after deducting depreciation. Students learn how NNP is related to Gross National Product (GNP), distinguish NNP at market price from NNP at factor cost, and understand the role of net indirect taxes and depreciation in national income calculations. The topic also helps them interpret NNP as an indicator of economic activity and income.
Practice questions
01 Which option correctly shows reverse conversion from (NNP_{FC}) to (GDP_{MP})?
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Answer and explanation
Correct answer: A. Add depreciation, deduct (NFIA) and add (NIT)
Explanation: The standard identity is NNP at factor cost = GDP at market price + NFIA − depreciation − net indirect taxes. Therefore, to move in the reverse direction from NNPFC to GDPMP, add depreciation, subtract NFIA, and add NIT. The signs must be reversed because the calculation is being rearranged backward. This sequence also converts net to gross, national to domestic, and factor cost to market price.
02 If (NNP_{FC}=6000) crore, depreciation is (700) crore, (NFIA=-200) crore and (NIT=350) crore, what will be (GDP_{MP})?
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Answer and explanation
Correct answer: A. 7250 crore
Explanation: Use the reverse-conversion identity GDPMP = NNPFC + depreciation − NFIA + NIT. Substitution gives GDPMP = 6000 + 700 − (−200) + 350 = 7250 crore. Because NFIA is negative, subtracting it means adding 200. Depreciation is added to change net into gross, while NIT is added to change factor-cost valuation into market-price valuation.
03 Why is identifying the base aggregate first essential in an expert-level NNP calculation?
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Answer and explanation
Correct answer: A. Because it determines domestic-national, gross-net and MP-FC adjustments
Explanation: An aggregate carries three important classifications: domestic or national, gross or net, and market price or factor cost. Identifying the given base tells us which conversions remain necessary. For example, a net figure requires depreciation only when converting to gross, while a domestic figure requires NFIA to become national. Market-price and factor-cost conversion requires NIT with the correct sign. Therefore, the base aggregate determines the entire calculation path.
04 If a question gives (GDP_{MP}), (NNP_{FC}), depreciation and (NIT), what is the correct logic to find (NFIA)?
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Answer and explanation
Correct answer: A. (NFIA=NNP_{FC}-GDP_{MP}+Depreciation+NIT)
Explanation: Start with the identity NNPFC = GDPMP + NFIA − depreciation − NIT. To isolate NFIA, subtract GDPMP from both sides and add depreciation and NIT to both sides. The result is NFIA = NNPFC − GDPMP + depreciation + NIT. This rearrangement is valid for positive or negative NFIA; the computed value itself will show whether receipts from abroad exceed payments to foreign factors.
05 If (NNP_{FC}) is to be derived from (GDP_{MP}) and NFIA is negative, which formula is correct?
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Answer and explanation
Correct answer: A. (NNP_{FC}=GDP_{MP}+NFIA-Depreciation-NIT)
Explanation: The conversion formula is NNPFC = GDPMP + NFIA − depreciation − NIT. A negative NFIA must still be inserted with its negative sign; for example, adding −120 reduces the aggregate by 120. The word ‘negative’ changes the numerical effect, not the algebraic position of NFIA in the formula. Depreciation is deducted because the target is net, and NIT is deducted to move from market price to factor cost.
06 If (GDP_{MP}=3000), NFIA (=-120), depreciation (=250), and NIT (=180) crore, what is national income?
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Answer and explanation
Correct answer: A. ₹2450 crore
Explanation: In national-income accounting, national income is NNP at factor cost. Starting from GDP at market price, use NNPFC = GDPMP + NFIA − depreciation − NIT. Thus NNPFC = 3000 + (−120) − 250 − 180 = 2450 crore. The negative NFIA reduces the result because it represents a net outflow of factor income to the rest of the world.
07 If (NNP_{MP}) is less than (NNP_{FC}), which situation is most possible?
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Answer and explanation
Correct answer: A. Subsidies are greater than indirect taxes
Explanation: The relationship is NNPMP = NNPFC + net indirect taxes, where NIT equals indirect taxes minus subsidies. If subsidies exceed indirect taxes, NIT becomes negative. Adding a negative NIT makes NNPMP lower than NNPFC. Depreciation and NFIA do not determine the difference between market price and factor cost because they change gross-net and domestic-national status, respectively.
08 Which two adjustments are used to derive (NNP_{FC}) from (NDP_{MP})?
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Answer and explanation
Correct answer: A. Add NFIA and subtract NIT
Explanation: NDP at market price is already domestic and net. To obtain NNP at factor cost, first add NFIA to change domestic income into national income, then subtract NIT to change market-price valuation into factor-cost valuation. No depreciation adjustment is made because the starting aggregate is already net. Thus the required adjustments are exactly NFIA addition and NIT subtraction.
09 If GNP at factor cost (GNP₍FC₎) is ₹2,100 crore and consumption of fixed capital is ₹260 crore, what is NNP at factor cost (NNP₍FC₎)?
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Answer and explanation
Correct answer: A. ₹1,840 crore
Explanation: Consumption of fixed capital is another name for depreciation. To convert a gross national aggregate into its corresponding net aggregate, depreciation is subtracted because it represents the value of capital used up during production. Therefore, NNP₍FC₎ = GNP₍FC₎ − depreciation = ₹2,100 − ₹260 = ₹1,840 crore. Hence, option A is correct.
10 If NNP₍FC₎ is being derived from GNP₍MP₎, which adjustment is unnecessary?
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Answer and explanation
Correct answer: A. NFIA adjustment
Explanation: GNP is already a national aggregate because it includes net factor income from abroad. Therefore, no further NFIA adjustment is required. To obtain NNP₍FC₎ from GNP₍MP₎, subtract depreciation to move from gross to net and subtract net indirect taxes to move from market price to factor cost.
11 If GNP at market price (GNP_MP) is ₹1,750 crore, depreciation is ₹130 crore, and net indirect taxes (NIT) are ₹75 crore, what is NNP at factor cost (NNP_FC)?
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Answer and explanation
Correct answer: A. ₹1,545 crore
Explanation: To convert GNP at market price into NNP at factor cost, first subtract depreciation to change gross into net, then subtract NIT to remove the market-price adjustment. Therefore, NNP_FC = GNP_MP − depreciation − NIT = ₹1,750 − ₹130 − ₹75 = ₹1,545 crore. Option A is correct. Option B subtracts only depreciation, and the other values use incorrect operations.
12 If NDP at market price (NDP₍MP₎) is ₹1,600 crore and NNP at market price (NNP₍MP₎) is ₹1,525 crore, what is NFIA?
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Answer and explanation
Correct answer: B. −₹75 crore
Explanation: At the same market-price and net basis, NNP₍MP₎ = NDP₍MP₎ + NFIA. Rearranging gives NFIA = NNP₍MP₎ − NDP₍MP₎ = ₹1,525 − ₹1,600 = −₹75 crore. The negative sign means factor income paid to the rest of the world exceeds factor income received from abroad by ₹75 crore. Therefore, option B is correct.
13 If NNP at factor cost (NNP_FC) is to be derived from GDP at factor cost (GDP_FC), which combination of adjustments is correct?
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Answer and explanation
Correct answer: A. Add NFIA and subtract depreciation
Explanation: The correct identity is NNP_FC = GDP_FC + NFIA − depreciation. Adding NFIA changes the domestic measure into a national measure, while subtracting depreciation changes the gross measure into a net measure. NIT is not adjusted because both starting and target aggregates are at factor cost. Hence option A is correct; B reverses both required adjustments, and C reverses the NFIA sign.
14 If GDP at factor cost (GDP₍FC₎) is ₹1,400 crore, NFIA is ₹50 crore, depreciation is ₹90 crore, and NIT is ₹40 crore, what is NNP at market price (NNP₍MP₎)?
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Answer and explanation
Correct answer: A. ₹1,400 crore
Explanation: To convert GDP₍FC₎ into NNP₍MP₎, add NFIA to change domestic into national, subtract depreciation to change gross into net, and add NIT to change factor cost into market price. Therefore, NNP₍MP₎ = ₹1,400 + ₹50 − ₹90 + ₹40 = ₹1,400 crore. Hence, option A is correct.
15 If reverse conversion is to be made from NNP₍FC₎ to GDP₍MP₎, which sequence is correct?
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Answer and explanation
Correct answer: A. Subtract NFIA, add depreciation, add NIT
Explanation: NNP₍FC₎ is national, net, and at factor cost, while GDP₍MP₎ is domestic, gross, and at market price. Reverse the three conversions: subtract NFIA to move from national to domestic, add depreciation to move from net to gross, and add NIT to move from factor cost to market price.
16 If NNP at factor cost (NNP₍FC₎) is ₹1,800 crore, NFIA is ₹100 crore, depreciation is ₹150 crore, and NIT is ₹80 crore, what is GDP at market price (GDP₍MP₎)?
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Answer and explanation
Correct answer: A. ₹1,930 crore
Explanation: To move from NNP₍FC₎ to GDP₍MP₎, subtract NFIA to change national into domestic, add depreciation to change net into gross, and add NIT to change factor cost into market price. Thus, GDP₍MP₎ = NNP₍FC₎ − NFIA + depreciation + NIT = ₹1,800 − ₹100 + ₹150 + ₹80 = ₹1,930 crore. Option A is correct.
17 If depreciation rises sharply while GNP remains the same, what economic issue will NNP indicate?
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Answer and explanation
Correct answer: A. Fall in net output capacity
Explanation: NNP is calculated by subtracting depreciation from GNP: NNP = GNP − depreciation. If GNP does not change but depreciation rises sharply, the remaining net product falls. This indicates that more of the gross output is being used to replace worn-out or obsolete capital, leaving less output after accounting for capital consumption.
18 If GNP at market price (GNPMP) = GDP at market price (GDPMP) + NFIA, what is the expanded formula for NNP at market price (NNPMP)?
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Answer and explanation
Correct answer: A. NNPMP = GDPMP + NFIA − Depreciation
Explanation: Net National Product at market price is obtained by first converting GDP into GNP through the addition of Net Factor Income from Abroad (NFIA), and then converting the gross figure into a net figure by deducting depreciation. Therefore, NNPMP = GNPMP − depreciation = GDPMP + NFIA − depreciation. NIT is used only when changing market-price figures into factor-cost figures.
20 Which set contains the three major conversion concepts used in national-income aggregates involving NNP?
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Answer and explanation
Correct answer: A. Depreciation, NFIA, and NIT
Explanation: Conversions among GDP, GNP, NDP, and NNP require three important adjustments. Depreciation converts a gross measure into a net measure or vice versa; NFIA converts a domestic measure into a national measure or vice versa; and NIT, equal to indirect taxes minus subsidies, converts factor-cost values into market-price values or vice versa. Therefore, option A is the correct set.
21 If GDP at market price is ₹2,100 crore, NFIA is ₹80 crore, depreciation is ₹170 crore, indirect taxes are ₹140 crore, and subsidies are ₹50 crore, what is NNP at factor cost?
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Answer and explanation
Correct answer: B. ₹1,920 crore
Explanation: First calculate net indirect taxes: NIT = indirect taxes − subsidies = ₹140 − ₹50 = ₹90 crore. To convert GDP at market price into NNP at factor cost, add NFIA to change domestic into national income, subtract depreciation to change gross into net income, and subtract NIT to change market price into factor cost. Thus, NNPFC = 2,100 + 80 − 170 − 90 = ₹1,920 crore. Option B is correct.
22 To convert NDP at market price into NNP at factor cost, which adjustment is correct?
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Answer and explanation
Correct answer: A. Add NFIA and deduct NIT
Explanation: NDP at market price is already a net domestic aggregate: it is net because depreciation has already been deducted, and domestic because it excludes NFIA. To obtain NNP at factor cost, add NFIA to convert domestic into national income and subtract NIT to convert market price into factor cost. No depreciation adjustment is required. Hence, option A is correct.
23 If NDP at market price is ₹5,300 crore, NFIA is ₹210 crore, and NIT is ₹380 crore, what is NNP at factor cost?
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Answer and explanation
Correct answer: A. ₹5,130 crore
Explanation: NDP at market price is already net, so depreciation must not be deducted again. Add NFIA to convert domestic income into national income and subtract NIT to convert market price into factor cost. Therefore, NNP at factor cost = NDPMP + NFIA − NIT = 5,300 + 210 − 380 = ₹5,130 crore. Thus, option A is correct.
24 What is the correct method for deriving NNP at market price from NDP at factor cost?
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Answer and explanation
Correct answer: A. Add NFIA and add NIT
Explanation: NDP at factor cost is already net, so no depreciation adjustment is needed. It is domestic, so NFIA must be added to obtain the national aggregate. It is measured at factor cost, so NIT must be added to convert it into market price. Therefore, NNP at market price = NDP at factor cost + NFIA + NIT, making option A correct.
25 If NDP at factor cost is ₹4,450 crore, NFIA is −₹140 crore, and NIT is ₹220 crore, what is NNP at market price?
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Answer and explanation
Correct answer: A. ₹4,530 crore
Explanation: Because NDP at factor cost is already net, no depreciation adjustment is required. Convert domestic to national by adding NFIA and convert factor cost to market price by adding NIT. Since NFIA is negative, it reduces the result: NNPMP = 4,450 + (−140) + 220 = ₹4,530 crore. Therefore, option A is correct.
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