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In the scale drawing of the rectangular dining room shown above, the

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Joined: 02 Sep 2009
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Kudos [?]: 129035 [0], given: 12187

In the scale drawing of the rectangular dining room shown above, the [#permalink]

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New post 26 Sep 2017, 23:33
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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

[Reveal] Spoiler:
Attachment:
2017-09-27_1016_003.png
2017-09-27_1016_003.png [ 3.29 KiB | Viewed 376 times ]
[Reveal] Spoiler: OA

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Kudos [?]: 129035 [0], given: 12187

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Joined: 22 May 2016
Posts: 819

Kudos [?]: 266 [0], given: 552

In the scale drawing of the rectangular dining room shown above, the [#permalink]

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New post 27 Sep 2017, 18:29
Bunuel wrote:
Image
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

[Reveal] Spoiler:
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
[Reveal] Spoiler:
C

Kudos [?]: 266 [0], given: 552

In the scale drawing of the rectangular dining room shown above, the   [#permalink] 27 Sep 2017, 18:29
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