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EEJ MAIN Aptitude QUESTION #10946
Question 1
In a floor plan, a room shown as 4 cm × 3 cm at scale 1:50 would have what actual floor area?
  • 30 m²
  • 3 m²✔️
  • 300 m²
  • 0.3 m²
Correct Answer Explanation

Scale 1:50 → 1 cm on plan = 50 cm = 0.5 m in reality.

Actual length = \(4 \times 50 = 200\ \text{cm} = 2\ \text{m}\

Actual width = \(3 \times 50 = 150\ \text{cm} = 1.5\ \text{m}\

Actual area = \(2 \times 1.5 = \mathbf{3\ \text{m}^2}\