JAMB 2019 Economics · Question 67
Use the following information given to answer this question Total of all expenditure incurred during the year…
Question
Use the following information given to answer this question Total of all expenditure incurred during the year ₤ 80,000m Indirect taxes on goods and services ₤ 8,000m Capital consumption ₤ 6,000m National income is__________
- A.₤ 74,000m
- B.₤ 66,000m
- C.₤ 60,000m
- D.₤ 14,000m
Answer: B. ₤ 66,000m
Explanation written with AI and checked against the answer key
Analyze the question: We are given total expenditure (GDP at market prices), indirect taxes, and capital consumption (depreciation). We need National Income.
Concept:
- Total expenditure = GDP at market price
- GDP at factor cost = GDP at market price − indirect taxes (net of subsidies)
- Net National Product (National Income) = GDP at factor cost − capital consumption (depreciation)
(Strictly, National Income would also include net income from abroad, but none is given, so we ignore it.)
Solution:
- GDP at market price = ₤80,000m
- Subtract indirect taxes: 80,000 − 8,000 = ₤72,000m (GDP at factor cost)
- Subtract capital consumption: 72,000 − 6,000 = ₤66,000m
National Income = ₤66,000m
Answer: B (₤66,000m)
Tip: Remember the chain: Expenditure → minus indirect taxes → minus depreciation → National Income. Taxes and capital consumption are the two "deductions" that take you from market-price GDP to national income. Option A (74,000) comes from subtracting only one deduction, which is a common trap, so always subtract both.
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