A hall of 10 m length 5 m width and 6 m height is to be painted one side only Determine the total su...........

Quantitative Aptitude (CPO) Mensuration 2D

A hall of 10 m length, 5 m width and 6 m height is to be painted (one side only). Determine the total surface area to be painted.

(neglect the area of windows and doors)(floor area is NOT to be painted)

This questions was previously asked in

SSC CPO 11th Nov 2022 Shift 1

300 m²

280 m²

330 m²

230 m²

Let's break it down:

- Dimensions: length = 10 m, width = 5 m, height = 6 m.

- Floor is NOT to be painted.

- Area to paint: Four walls + ceiling (roof) only.

- Area of four walls = 2*(length + width)*height = 2*(10+5)*6 = 2*15*6 = 180 m².

- Area of ceiling = length * width = 10*5 = 50 m².

- Total area to be painted = 180 + 50 = 230 m².

Options explained:

- Option 1 (300 m²): Too high.

- Option 2 (280 m²): Too high.

- Option 3 (330 m²): Too high.

- Option 4 (230 m²): Correct!

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