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The two most popular external surfaces for homes in this state

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The two most popular external surfaces for homes in this state  [#permalink]

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New post 28 Mar 2018, 18:16
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A
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Question Stats:

49% (02:14) correct 51% (01:59) wrong based on 249 sessions

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The two most popular external surfaces for homes in this state are brick and wood. In general, a brick exterior costs twice as much as a wood exterior to install. A major difference between these surfaces, however, is that wood exteriors need to be painted and repainted every five years or so, and even more frequently in areas with heavy rainfall. If people take into account the cost of painting and repainting, they will realize that a wood exterior is actually more expensive than brick over the lifetime of the house.
Which of the following is an assumption upon which the argument above relies?
A. The cost of painting and repainting a wooden house over its lifetime is at least equal to the cost of installing a wood exterior in the first place.
B. The average lifetime of a home in this state is 75 years.
C. A less expensive option than either wood or brick is a vinyl exterior, which does not require painting.
D. The cost of painting and repainting a wooden house over the expected lifetime of the house is equal to that of installing a brick exterior.
E. A wooden house that is not painted regularly will be subject to water damage, rot, and termite damage, which will decrease the resale value of the home.

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Re: The two most popular external surfaces for homes in this state  [#permalink]

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New post 29 Mar 2018, 02:12
IMO Answer will be A,
as stated in the argument that brick ext. cost twice as much as wooden ext to install ,
So if the cost of painting and repainting is at least equals to the cost of wooden ext
only then it would be equals to that of Bricks ext. over the lifetime

let say

cost of W.ext =20K
cost of B.ext =40k

then if cost of W.ext needs to > cost of B.ext over lifetime

painting cost alt east equals to 40 -20=30k
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Re: The two most popular external surfaces for homes in this state  [#permalink]

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New post 08 Apr 2018, 05:10
I think A is assumption , while D is strengthener.
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Re: The two most popular external surfaces for homes in this state  [#permalink]

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New post 08 Apr 2018, 17:16
A) painting cost is at least equal. negate - painting cost over lifetime is < wooden build cost. so, total cost is less 2x of built cost.
Brick build cost is greater than 2x of wooden. The argument falls apart since even if painting and repainting brick is more easy on the pocket. HOLD

B) hmm..as long as it is more than 5 we can't conclude much. stem doesnt say how much one painting costs. IGNORE

C) Don't care. IGNORE

D) negate. cost of re/paint not equal to brick built. is it less or more? if less than go with wood. if more then build brick house. Good option but A is superior. IGNORE


E) probably a trap. The conclusion specifically talks about money and brick vs wood. IGNORE

Answer A
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Re: The two most popular external surfaces for homes in this state  [#permalink]

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New post 21 Apr 2018, 22:28
Premise:
1. brick vs wood exterior. cost of brick exterior =~ 2x cost of wood exterior.
2. wood exterior need to repaint every five years, in case of heavy rainfall, more often then not.
3. Conclusion : Over all wood one is more costly then brick one.

Which of the following is an assumption upon which the argument above relies?
A. The cost of painting and repainting a wooden house over its lifetime is at least equal to the cost of installing a wood exterior in the first place. --- So this way cost is almost equal to brick wall installation in least case. but in any other case this cost will be more then brick wall life time cost. on nigation , conclusion falls. A is the correct option
_________________

Thanks!
Do give some kudos.

Simple strategy:
“Once you’ve eliminated the impossible, whatever remains, however improbable, must be the truth.”

Want to improve your Score:
GMAT Ninja YouTube! Series 1| GMAT Ninja YouTube! Series 2 | How to Improve GMAT Quant from Q49 to a Perfect Q51

My Notes:
Reading comprehension | Critical Reasoning | Absolute Phrases | Subjunctive Mood

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Re: The two most popular external surfaces for homes in this state &nbs [#permalink] 21 Apr 2018, 22:28
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