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Three walls have wallpaper covering a combined area of 300 square mete
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Updated on: 14 Nov 2010, 20:12
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T.O. Sets gave me trouble, so I came up with another example to practice. Hope it helps you, too.Three walls have wallpaper covering a combined area of 300 square meters. By overlapping the wallpaper to cover a wall with an area of 180 square meters, the area that is covered by exactly two layers of wallpaper is 36 square meters. What is the area that is covered with three layers of wallpaper? A. 5 Square Meters B. 36 Square Meters C. 42 Square Meters D. 83.3 Square Meters E. 120 Square Meters
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Originally posted by rockzom on 13 Nov 2010, 12:58.
Last edited by rockzom on 14 Nov 2010, 20:12, edited 1 time in total.



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Re: Three walls have wallpaper covering a combined area of 300 square mete
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14 Nov 2010, 17:17



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Re: Three walls have wallpaper covering a combined area of 300 square mete
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14 Nov 2010, 20:04
Total = Group1 + Group2 + Group3  (sum of 2group overlaps)  2*(all three)
OR; 180 = 300  36  2* (exactly 3 overlap)
OR; 2* (exactly 3 overlap) = 264180 = 84
OR; (exactly 3 overlap) = 42



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Re: Three walls have wallpaper covering a combined area of 300 square mete
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14 Nov 2010, 20:17
S = Single D = Double T = Triple S + 2D + 3T = 300 S + D + T = 180 Subtract. D + 2T = 120 36 is the double overlap, so... 36 + 2T = 120 2T= 12036 2T = 84 T = 42 Or C.
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Re: Three walls have wallpaper covering a combined area of 300 square mete
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14 Nov 2010, 20:46
rockzom wrote: T.O. Sets gave me trouble, so I came up with another example to practice. Hope it helps you, too.
Three walls have wallpaper covering a combined area of 300 square meters. By overlapping the wallpaper to cover a wall with an area of 180 square meters, the area that is covered by exactly two layers of wallpaper is 36 square meters. What is the area that is covered with three layers of wallpaper?
A. 5 Square Meters B. 36 Square Meters C. 42 Square Meters D. 83.3 Square Meters E. 120 Square Meters 300  180 = 120 sq m of the wallpaper overlaps (in either two layers or three layers) If 36 sq m has two layers, 120  36 = 84 sq m of the wallpaper overlaps in three layers. 84 sq m makes two extra layers hence the area over which it makes two extra layers is 42 sq m. Answer (C). Similar question: threerugshaveacombinedareaof102326.htmlThis question has 'Rug' instead of 'Wallpaper'
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Re: Three walls have wallpaper covering a combined area of 300 square mete
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02 Aug 2017, 00:06
rockzom wrote: T.O. Sets gave me trouble, so I came up with another example to practice. Hope it helps you, too.
Three walls have wallpaper covering a combined area of 300 square meters. By overlapping the wallpaper to cover a wall with an area of 180 square meters, the area that is covered by exactly two layers of wallpaper is 36 square meters. What is the area that is covered with three layers of wallpaper?
A. 5 Square Meters B. 36 Square Meters C. 42 Square Meters D. 83.3 Square Meters E. 120 Square Meters What is the difficulty level of this question; wish to solve more like this.........
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Re: Three walls have wallpaper covering a combined area of 300 square mete
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29 Sep 2017, 23:11
VeritasPrepKarishma wrote: rockzom wrote: T.O. Sets gave me trouble, so I came up with another example to practice. Hope it helps you, too.
Three walls have wallpaper covering a combined area of 300 square meters. By overlapping the wallpaper to cover a wall with an area of 180 square meters, the area that is covered by exactly two layers of wallpaper is 36 square meters. What is the area that is covered with three layers of wallpaper?
A. 5 Square Meters B. 36 Square Meters C. 42 Square Meters D. 83.3 Square Meters E. 120 Square Meters 300  180 = 120 sq m of the wallpaper overlaps (in either two layers or three layers) If 36 sq m has two layers, 120  36 = 84 sq m of the wallpaper overlaps in three layers. 84 sq m makes two extra layers hence the area over which it makes two extra layers is 42 sq m. Answer (C). Similar question: http://gmatclub.com/forum/threerugsha ... 02326.htmlThis question has 'Rug' instead of 'Wallpaper' Hi karishma, I can't comprehend the question. I get the solution, but i feel the question is weakly worded. Is it so? If not please explain the question. Thanks,



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Re: Three walls have wallpaper covering a combined area of 300 square mete
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30 Sep 2017, 00:00
rever08 wrote: VeritasPrepKarishma wrote: rockzom wrote: T.O. Sets gave me trouble, so I came up with another example to practice. Hope it helps you, too.
Three walls have wallpaper covering a combined area of 300 square meters. By overlapping the wallpaper to cover a wall with an area of 180 square meters, the area that is covered by exactly two layers of wallpaper is 36 square meters. What is the area that is covered with three layers of wallpaper?
A. 5 Square Meters B. 36 Square Meters C. 42 Square Meters D. 83.3 Square Meters E. 120 Square Meters 300  180 = 120 sq m of the wallpaper overlaps (in either two layers or three layers) If 36 sq m has two layers, 120  36 = 84 sq m of the wallpaper overlaps in three layers. 84 sq m makes two extra layers hence the area over which it makes two extra layers is 42 sq m. Answer (C). Similar question: http://gmatclub.com/forum/threerugsha ... 02326.htmlThis question has 'Rug' instead of 'Wallpaper' Hi karishma, I can't comprehend the question. I get the solution, but i feel the question is weakly worded. Is it so? If not please explain the question. Thanks, Yes, the language of this question is suspect. Check this question: https://gmatclub.com/forum/threerugsh ... ml#p794940It is very similar and the language is fine.
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