GMAT Focus EditionVerbal ReasoningHard

A local government proposed a mandatory recycling program, arguing it would significantly reduce the amount of waste sent to landfills. An environmental advocacy group countered that the program would have a negligible impact because most of the city's waste is non-recyclable construction debris. Which of the following, if true, would most effectively refute the advocacy group's counter-argument?

  1. AThe city's landfill capacity is projected to reach its limit within five years, regardless of the recycling program.
  2. BThe cost of processing recycled materials is higher than the cost of landfill disposal.
  3. CNeighboring cities have implemented mandatory recycling programs with varying degrees of success.
  4. DA recent audit revealed that household and commercial waste, much of which is recyclable, constitutes 70% of the city's total waste stream.
Show answer & explanation

Correct answer: D. A recent audit revealed that household and commercial waste, much of which is recyclable, constitutes 70% of the city's total waste stream.

The advocacy group's counter-argument hinges on the premise that 'most of the city's waste is non-recyclable construction debris', implying the recycling program would have a 'negligible impact'. Option B directly refutes this premise by stating that household and commercial waste, which is largely recyclable, constitutes 70% of the total waste. If 70% is recyclable, then the program would likely have a significant, not negligible, impact.

Why the other options are wrong

  • A. This supports the need for *some* solution but doesn't refute the claim about the recycling program's *impact* on overall waste.
  • B. Cost is irrelevant to the program's effectiveness in reducing waste at landfills.
  • C. Varying success in other cities doesn't directly refute the specific claim about the composition of *this city's* waste.

Refuting Foundational Premises

To effectively refute a counter-argument, directly challenge or provide evidence against the core factual premise upon which that counter-argument is built.

  • Identify the central claim of the counter-argument.
  • Pinpoint the underlying fact or assumption it relies upon.
  • Provide strong evidence that contradicts this foundational premise.

Memory trick: Knock down the legs, and the table falls.

More Verbal Reasoning questions