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Question : A hall of 10 m in length, 5 m in width, and 6 m in 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)

Option 1: 300 m2

Option 2: 280 m2

Option 3: 330 m2

Option 4: 230 m2


Team Careers360 21st Jan, 2024
Answer (1)
Team Careers360 23rd Jan, 2024

Correct Answer: 230 m 2


Solution : Given: Length = 10 m
Width = 5 m
Height = 6 m
Area of 4 walls = 2(l + w)h
= 2 × (10 + 5) × 6
= 2 × 15 × 6
= 180 m 2
Area of ceiling = l × w
= 10 × 5
= 50 m 2
Total area = 180 + 50 = 230 m 2
Hence, the correct answer is 230 m 2 .

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