ATI TEAS 7 Mathematics Exam 2022/23 (questions, answers, and rationales)
On a floor plan drawn at a scale of 1:100, the area of a rectangular room is 30 cm2. What is the actual area of the room?
A. 30,000 cm2
B. 300 m2
C. 3,000 m2
D. 30 m2
ANS} - D.
Since there are 100 cm in a meter, on a 1:100 scale drawing,each centimeter represents one meter. Therefore, an area of one square centimeter on the drawing represents one square meter tin actuality.
- Since the area of the room in the scale drawing is 30 cm2, the room's actual area is 30 m2.
L/100 x W/100 = 30 cm2 lw/100 = 30 cm2
Area = 300,000 cm2
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