The cost of renovating a house can be dramatically cut by restructurin

Question

The cost of renovating a house can be dramatically cut by restructuring the interior with sturdy low-cost materials, rather than by simply making cosmetic changes with more expensive materials. Those contracting companies hired to undertake renovations, therefore, would save money by purchasing only sturdy, low-cost materials to use in their work.

The suggestion above rests on the assumption that

people who hire contracting companies may choose what types of materials are used in their renovations  
  any house can be successfully renovated using only expensive materials  
  the cost of materials is the primary financial burden of a contracting company  
  any renovation of a house can be accomplished by restructuring the interior with low-cost, sturdy materials 
  not all houses need major renovations

manojsundar1 · Accepted Answer

the OA is D.It says any renovation can be done using low cost materials. If you negate this statement,"not any renovation can be done using low cost material".Th conclusion falls apart as low cost materials cannot substitute expensive ones. This assumption is correct coz the paragraph talks about replacing expensive materials for any renovation with low cost ones. Plus none of the other options break the conclusion.

sinraj · Answer

Why option D? Assumption cannot be something that's stated in the argument isn't it?

Dat Le · Answer

The cost of renovating a house can be dramatically cut by restructuring the interior with sturdy low-cost materials, rather than by simply making cosmetic changes with more expensive materials. Those contracting companies hired to undertake renovations, therefore, would save money by purchasing only sturdy, low-cost materials to use in their work.

The suggestion above rests on the assumption that

people who hire contracting companies may choose what types of materials are used in their renovations  
  any house can be successfully renovated using only expensive materials  
  the cost of materials is the primary financial burden of a contracting company  
  any renovation of a house can be accomplished by restructuring the interior with low-cost, sturdy materials 
  not all houses need major renovations

here is my explaination by using rejecting method. Option A is out of scope, B seems right , but not metion in passage, C may be true, but I neagating it, it fails the argument, E is completely wrong. Only D obey the argument

Subanta · Answer

A.  No.  The argument is that contracting companies would save money, not that the people who hire them would.
B.  No.  This is the opposite of the assumption being made.
C.  No.  The argument states only that money will be saved--the actual amount is not the issue.
D.   Yes.   The contractors would save money by purchasing low-cost, sturdy materials only if those materials could be used instead of the expensive ones.
E.  No.  This argument only deals with the situation in which renovations will be made.

Archit3110 · Answer

conclusion:
Those contracting companies hired to undertake renovations, therefore, would save money by purchasing only sturdy, low-cost materials to use in their work.

negate D ; any renovation of a house  cannot  be accomplished by restructuring the interior with low-cost, sturdy materials

killy26 · Answer

Can you plz tell me? How to choose right construction company?
Thanks...

AbhishekDhanraJ72 · Answer

I was told to never question the statement/premise. Why question the premise/conclusion/something as the statement by answering D?

Posted from my mobile device

HarshZsssh · Answer

it a statement or fact how D can be the the answer we need to mark author thought process.GMAT experts can u explain this question

The cost of renovating a house can be dramatically cut by restructurin

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The cost of renovating a house can be dramatically cut by restructurin

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615 to 715 in 15 Days (Ria's Strategies)

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