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EEJ MAIN Aptitude QUESTION #11027
Question 1
An architect draws a circle of diameter $4$ cm on a plan at scale $1:100$. What is the actual area represented by this circle in square meters?
  • $4\pi$✔️
  • $8\pi$
  • $16\pi$
  • $32\pi$
Correct Answer Explanation
Actual diameter = $4 \times 100 = 400$ cm = $4$ m. Actual radius = $2$ m. Area = $\pi r^2 = 4\pi$ m$^2$.