Official Answer Key & Detailed Solution
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Correct Answer: Option (B) — 2 and 3
Concept & Option Breakdown
Standard Reference Verified- Statement 1 is incorrect: The WPI series with base 1993-94=100 was officially introduced and made effective from April 1, 2000 (replacing the 1981-82 base series), not April 1998.
- Statement 2 is correct: In the 1993-94 series, the weight assigned to primary articles decreased by about 10 percentage points (from 32.29% to 22.02%).
- Statement 3 is correct: The weight assigned to fuel, power, and electricity sub-groups increased in the new series.
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