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# The ﬁgure above represents a rectangular garden with a walkw

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The ﬁgure above represents a rectangular garden with a walkw [#permalink]  14 Dec 2015, 06:51
Expert's post
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Question Stats:

68% (00:56) correct 31% (01:44) wrong based on 16 sessions

The ﬁgure above represents a rectangular garden with a walkway around it. The garden is 18 feet long and 12 feet wide. The walkway is uniformly 3 feet wide, and its edges meet at right angles. What is the area of the walkway?

[Reveal] Spoiler:
216

Practice Questions
Question: 11
Page: 153
Difficulty: medium

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Moderator
Joined: 18 Apr 2015
Posts: 4914
Followers: 74

Kudos [?]: 977 [0], given: 4499

Re: The ﬁgure above represents a rectangular garden with a walkw [#permalink]  14 Dec 2015, 07:01
Expert's post
Solution

The region represented by the larger rectangle is the garden and the walkway combined. The length of the region is the length of the garden plus twice the width of the walkway, or feet. The width of the region is the 18+(2)(3)=24 width of the garden plus twice the width of the walkway, or feet. 12+(2)(3)=18
Therefore, the area of the region represented by the larger rectangle is (24)(18), or 432 square feet, and the area of the walkway is or $$216$$ square feet.
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Re: The ﬁgure above represents a rectangular garden with a walkw [#permalink]  23 May 2018, 09:15
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Expert's post
Carcass wrote:

The ﬁgure above represents a rectangular garden with a walkway around it. The garden is 18 feet long and 12 feet wide. The walkway is uniformly 3 feet wide, and its edges meet at right angles. What is the area of the walkway?

[Reveal] Spoiler:
216

Practice Questions
Question: 11
Page: 153
Difficulty: medium

Let's first add some lines to divide the walkway into 4 rectangular regions (A, B, C and D), and then find the area of each region.

Since the walkway is uniformly 3 feet wide, we can add this to our diagram.
We'll also add the fact that the garden is 18 feet long.

At this point, we can see that the total length of region A = 18 + 3 + 3 = 24 feet

So, the area of region A = (3)(24) = 72
Since region B is identical to region A, we know that the area of region B = 72 also

Now let's examine region C.

We can see that the dimensions of region C are 3 by 12
So, the area of region C = (3)(12) = 36
Since region D is identical to region C, we know that the area of region D = 36 also

TOTAL AREA of walkway = 72 + 72 + 36 + 36 = 216

Cheers,
Brent
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Brent Hanneson – Creator of greenlighttestprep.com

Re: The ﬁgure above represents a rectangular garden with a walkw   [#permalink] 23 May 2018, 09:15
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