PrepTest 144, Section 3, Question 8
The result of attempting to whip cream in(50 more words not shown)
If all of the statements(11 more words not shown)
- ACream that has(14 more words not shown)
- BThe use of(15 more words not shown)
- CWhen attempting to(24 more words not shown)
- DThe use of(22 more words not shown)
- EThe use of(20 more words not shown)
Reading the argument
A special attachment can help without fixing the problem. The blender produces a thick, velvety result instead of fluffy whipped cream because its container doesn't let in enough air. Maybe that texture would be useful for something else. But it isn't the fluffy result we're trying to produce here.
Adding the whipping-cream attachment helps somewhat, yet the passage expressly says it cannot fully make up for the poor air intake. So we should keep both ideas: some improvement is possible, and the underlying limitation remains.
What we’re looking for
The question asks what must be true. We don't need to invent a new theory of whipping cream or force a more specific prediction. Understand those facts, then check whether an answer stays within them.
Working the answers
- A
We know what happens when cream is whipped ineffectively in this blender. We don't know what generally happens whenever cream is whipped ineffectively. Perhaps a different failed method leaves it watery rather than thick and velvety. That possibility isn't a new fact about cream; it shows why one method's result doesn't establish the general claim in A.
- BCorrect
The attachment alone is not enough to whip cream completely effectively. It cannot fully overcome the container's poor air intake, which is the problem preventing effective whipping. B restates the limitation we were given rather than adding a new claim about how the attachment works.
- C
'Can help somewhat' doesn't mean 'always produces a fluffier result.' The attachment might help in some attempts and make no difference in others. We aren't given the guarantee that C requires.
- D
Helping somewhat doesn't tell us that the attachment reduces the amount of air needed. It might help in another way while leaving that requirement unchanged. We are told that the air-intake problem remains; we aren't told that the tool changes how much air effective whipping requires.
- E
Common and effective are different. Perhaps lots of people use a blender and get disappointing results. Or perhaps almost nobody uses one. The passage explains why the method falls short, not how many people try it.
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