Planning & EstimatingCâu 592 / 700
A room is 12 ft by 16 ft with 8 ft ceilings. You will hang 4x8 gypsum board on all four walls AND the ceiling, ignoring openings and waste. What is the MINIMUM number of full sheets?
a.14 sheets
b.6 sheets
c.24 sheets
d.20 sheets
Giải thích
Wall area = perimeter x height = 2 x (12 + 16) x 8 = 56 x 8 = 448 sq ft. Ceiling = 12 x 16 = 192 sq ft. Total = 640 sq ft. Each 4x8 sheet = 32 sq ft. 640 / 32 = 20 sheets (d). Option (a) counts walls only. Option (b) counts the ceiling only. Option (c) overstates the area.
Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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