Standard result: if ∣A∣=0, the system AX=B has a unique solution. Option 3 claims that ∣A∣=0 with (adjA)B=0 gives no solution, which contradicts uniqueness. So option 3 is the incorrect statement.
Given Σ p_0 q_0 = 800, Σ p_0 q_1 = 1500, Σ p_1 q_1 = 1300 and Σ p_1 q_0 = 900, where subscripts 0 and 1 are used for base year and current year…
CUET UG 2023 — Mathematics Applied-Mathematics
2023mcqmedium
Given ∑p0q0=800, ∑p0q1=1500, ∑p1q1=1300 and ∑p1q0=900, where subscripts 0 and 1 are used for base year and current year respectively. The Paasche's index number is:
Official previous-year question
Held on 23 May 2023 · Verified 13 Jul 2026.
Options
- A
88.9
- B
115.4
- C
144.4
- D
86.7
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