Index Numbers
ICSE · Class 11 · Economics
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Quick Quiz: Index Numbers
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A weighted price index uses Laspeyre's formula. The current year prices and base year quantities are such that Σp1q0 = 468 and Σp0q0 = 340. What is the index number?
A Paasche price index has Σp1q1 = 558 and Σp0q1 = 480. Find the index number.
For Fisher's Ideal Formula, the Laspeyre's index is 140 and the Paasche's index is 110. What is Fisher's index?
A weighted average of price relatives uses ΣRW = 96,000 and ΣW = 640. What is the index number?
Sample Questions
A consumer price index is constructed by the Aggregate Expenditure Method. If ΣP1Q0 = 3,780 and ΣP0Q0 = 2,800, what is the CPI?
Show answer
135.00
Consumer Price Index by Aggregate Expenditure Method is CIP = ΣP1Q0/ΣP0Q0 × 100. So CIP = 3780/2800 × 100 = 135.00. The CPI is 135.
A family budget method gives ΣRW = 189,000 and ΣW = 1,400. What is the consumer price index?
Show answer
135.00
Consumer Price Index by Family Budget Method is CIP = ΣRW/ΣW. So CIP = 189,000/1,400 = 135.00. The consumer price index is 135.
A worker earns money wages of ₹9,600 and the consumer price index is 240. What is the real income of wages?
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₹4,000
Real Income of Wages = (Money Income or Wages/Consumer Price Index) × 100. So real income = (9600/240) × 100 = ₹4,000. The real income is ₹4,000.
The previous year's WPI is 160 and the current year's WPI is 200. What is the rate of inflation?
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25%
Rate of Inflation = [(Current Year WPI - Previous Year WPI)/Previous Year WPI] × 100. So = (200 - 160)/160 × 100 = 25%. The rate of inflation is 25%.
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