Bunuel wrote:

In the scale drawing of the rectangular dining room shown above, the scale used was 5 cm = 1 meter. What is the actual area, in square meters, of the room?

(A) 10

(B) 12

(C) 24

(D) 120

(E) 250

Attachment:

2017-09-27_1016_003.png

\(\frac{scale}{actual} =\frac{5cm}{1m}\)

Actual area, in square meters, of the room = L x W

Length: \(\frac{5cm}{1m} =\frac{30cm}{Lm}\)

L = \(6m\)

Width: \(\frac{5cm}{1m} =\frac{20cm}{Wm}\)

W \(= 4m\)

Actual area in square meters = L x W = 6 x 4 = 24

Answer

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-- Albert Camus, "Return to Tipasa"