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  9. Q132

APSC CCE 2024 · Question 132 of 178

Tim was calculating the area of a square. He made a mistake in measuring the side of the square, the error being 10% in excess. Find the resultant percentage error in the area of the square.

Quantitative Aptitude

  1. A11%
  2. B15%
  3. C21%Correct
  4. D60%

Answer: C. 21%

Explanation

Area error = 1.1² - 1 = 0.21, i.e. 21%; official key gives (C).

Source: APSC CCE Prelims 2024 GS Paper-II, official Series-A paper (DUCN-II-24/44-A), answer from official Series-A key

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