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The Powerscore CR bible is really good.san2009 wrote:Great thanks. Osirus - what other sources would you recommend besides official guide and GMAT prep tests?
LSAT prep? Powerscore Bible? Thanks
IMO answer C.osirus0830 wrote:Here are some examples just from one CAT
In response to the increasing cost of producing energy through traditional means, such as combustion, many utility companies have begun investing in renewable energy sources, chiefly wind and solar power, hoping someday to rely on them completely and thus lower energy costs. The utility companies claim that although these sources require significant initial capital investment, they will provide stable energy supplies at low cost. As a result, these sources will be less risky for the utilities than nonrenewable sources, such as gas, oil, and coal, whose prices can fluctuate dramatically according to availability.
The claim of the utility companies presupposes which of the following?
A) The public will embrace the development of wind and solar power.
B) No new deposits of gas, oil, and coal will be discovered in the near future.
C) Weather patterns are consistent and predictable.
D) The necessary technology for conversion to wind and solar power is not more expensive than the technology needed to create energy through combustion.
E) Obtaining energy from nonrenewable sources, such as gas, oil and coal, cannot be made less risky.
The problem I have with this one is that weather patterns do not have to be constant and predictable for alternative energy sources to work. It ignores the possibility of just storing energy when wind or solar is abundant, and using the reserves that are stored when those sources of power aren't abundant.
Here, they are actually asking what is the underlying assumption in Airline A's plan.osirus0830 wrote:
Due to high jet fuel costs, airline carriers are looking for new ways to increase revenues and thereby counteract declining profits. Airline A has proposed increasing the number of passengers that can fit on its airplanes by creating several standing room only "seats" in which passengers would be propped against a padded backboard and held in place with a harness. This proposal, since it relates to passenger safety, cannot be implemented without prior approval by the Federal Aviation Administration.
The above statements, if true, indicate that Airline A has made which of the following conclusions?
A) The addition of standing room only "seats" will generate more revenue than the cost of ensuring that these seats meet safety standards.
B) The Federal Aviation Administration will approve Airline A's specific proposal.
C) The revenue generated by the addition of standing room only "seats" is greater than the current cost of jet fuel.
D) There are no safer ways in which Airline A can increase revenues.
E) Passenger safety is less important than increasing revenue.
The problem I have with this one is that no where in the stimulus does it mention the "costs" of getting FDA approval. I think its out of scope, yet in order to choose this answer, you have to make that assumption, which can't be considered a common sense assumption that the GMAC allows for.
Vow!! looks like you guys are taking on MGMAT and I am being MGMAT's savior. Just FYI, I am in no way affiliated to MGMATsan2009 wrote:Here is a question i came across in MGMAT.... Below the answer choices, I've expressed my issue with the question/answer.
A recent study demonstrated that parents living with children consume nearly five more grams of fat per day, on average, than do adults living without children. The higher fat intake among these parents is probably attributable to their snacking on the pizza and cookies that tend to be plentiful in households with children.
Which of the following, if true, would most seriously weaken this explanation of the parents' higher fat intake?
A-On average, households with children spend $15 more per week on pizza and cookies than do households without children.
B-Households with children purchase much more whole milk, which has a high fat content, than do households without children.
C-Children consume most of the pizza and cookies in any given household.
D-Parents ought to set a good example for their children, in dietary choices as in other matters.
E-Not all parents living with children consume more grams of fat than do adults living without children.
-------the answer that MGMAt points out is B.
Here is my problem with it.
Isn't the argument based on the fact that parents who live in households with children are the ones consuming more fat than those living without children? If so, the source of the fat is important but having the children in the house is more important, no? If you agree, then if the children eat most of the snacks and pizza --- leaving little for the parents---then parents will be unable to consume as much pizza and snacks. In short, isn't answer C the correct answer?
My only interest is in the questions and use of reason to solve ambiguity.New here Create free account
