hard · GMAT Verbal
An automobile manufacturer switched to a lighter aluminum alloy for the body panels of one of its sedan models. In independent road tests, the new-alloy sedans achieved fuel economy 8 percent higher than the previous model year's sedans, which used a heavier steel alloy. The manufacturer concluded that the switch to the lighter alloy caused the fuel-economy improvement.
Which of the following, if true, most strengthens the manufacturer's conclusion?
- The new-alloy sedans cost slightly more to manufacture than the previous model.
- Aside from the body panel material, the new and previous model years used the same engine, transmission, and overall vehicle dimensions.
- Consumer demand for fuel-efficient vehicles has grown in recent years.
- The manufacturer advertised the new sedan's fuel economy prominently in its marketing campaign, running the ads across national television and print.
- The new-alloy sedans received a higher overall safety rating than the previous model.
Sign up free to see the explanation and track your rank →
More GMAT Verbal practice
- A gardener says: 'All roses in this garden require daily wat… — What is the role of the st
- What is the conclusion?
- Which of the following is the conclusion?
- What logical role do the first two statements play?
- What is the conclusion?
- What logical role does the first sentence play in the researcher's argument?
- Which statement is the conclusion?
- Which of the following, if true, most undermines the agency's claim?