Logical Reasoning
PrepTest 123 Section 2
Find the question you’re working on. Explore the reasoning, understand each answer, and learn from your mistakes.
Choose a question
Explanations for every question, find them by number or text.
- Q1:
Economist: Every business strives to increase its productivity…Identify the Conclusion
Not all efforts to increase productivity help the business, overall.
- Q2:
All Labrador retrievers bark a great deal. All Saint Bernards…Flawed Parallel Reasoning
Rosa’s dogs bark a moderate amount.
- Q3:
A century in certain ways is like a life, and as the end…Complete the Argument
At the end of a century, people will look back on the events of the century.
- Q4:
- Q5:
Scientist: Earth's average annual temperature has increased…Weaken
The 0.5 degree celsius warming was caused by larger amounts of minor gases in the atmosphere.
- Q6:
An undergraduate degree is necessary for appointment…Sufficient Assumption
Murray can’t be executive administrator.
- Q7:
Ethicist: The most advanced kind of moral motivation…Principle – Conform
- Q8:
Proponents of the electric car maintain that when the…Complete the Argument
The electric car causes some pollution. [This was my prephrase before doing the answers]
- Q9:
- Q10:
Double-blind techniques should be used whenever possible…Identify the Conclusion
We should use double-blind techniques in experiments as much as we can.
- Q11:
It is now a common complaint that the electronic media…Role in Argument
Electronic media will probably alter rather than worsen the human mind.
- Q12:
Suppose I have promised to keep a confidence and someone asks…Parallel Reasoning
It’s impossible to have to keep all promises and also to have to answer every question honestly.
- Q13:
Standard aluminum soft-drink cans do not vary in the amount…Sufficient Assumption
Group M has twice as many cans as group L.
- Q14:
A cup of raw milk, after being heated in a microwave oven…Weaken
Microwaves are what destroy lysozyme enzyme. Heat is not the cause.
- Q15:
A new government policy has been developed to avoid…Sufficient Assumption
We’ll need to vaccinate all high-risk individuals every year.
- Q16:
Taylor: Researchers at a local university claim that …Point at Issue
- Q17:
Hospital executive: At a recent conference on nonprofit…Flawed Reasoning
We ought to make client confidentiality protection our highest priority.
- Q18:
Modern science is built on the process of posing hypotheses…Most Strongly Supported
Few scientists have found evidence that global warming is unlikely.
- Q19:
Historian: The Land Party achieved its only national victory…Strengthen – Exception
The Land Party succeeded because:
1. It addressed the concerns of agricultural and small business interests, and
2. Because those groups were facing deep problems. - Q20:
Gamba: Muñoz claims that the Southwest Hopeville Neighbors…Method of Reasoning
Muñoz is wrong to say that people in the city oppose the new water system.
- Q21:
Driver: My friends say I will one day have an accident…Flawed Reasoning
I will have a lower chance of an accident in a minivan.
- Q22:
Editorialist: News media rarely cover local politics…Most Strongly Supported
Lack of news AND secret politics ➞ local politicians isolated from electorate ➞ less chance resident participation will get positive official response ➞ less resident participation
~~N~~ AND SP ➞ PI ➞ ~~OR~~ ➞ ~~RP~~
Note: I’ve drawn these as a conditional statement.
- Q23:
Philosopher: An action is morally right if it would be…Sufficient Assumption
Well being unchanged ➞ right
- Q24:
Car companies solicit consumer information on such human…Principle – Conform
Designer interaction is better than survey data.
- Q25:
During the nineteenth century, the French academy of art…Paradox
The French academy sponsored both painting and sculpture.
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