Strengthen, Weaken and Flaw — Practice

Question 1

Passage: Soon after the new coach arrived, the team began winning regularly. Therefore, the new coach is the reason for the team's success.
Which, if true, most weakens the argument?

Accepted Answer

B

Question 2

Passage: The town introduced a nightly curfew, and burglaries fell sharply that year. The mayor concludes the curfew reduced burglaries.
Which, if true, most strengthens the conclusion?

Accepted Answer

B

Question 3

Passage: Every morning the rooster crows, and shortly afterwards the sun rises. Therefore, the rooster's crowing causes the sun to rise.
The reasoning is flawed because it

Accepted Answer

B

Question 4

Passage: People who take multivitamins every day are, on average, healthier than those who do not. So taking multivitamins improves health.
Which, if true, most weakens the argument?

Accepted Answer

B

Question 5

Passage: A firm says its training programme raises productivity, noting that employees who took the training now produce more than those who did not.
Which, if true, most strengthens the claim?

Accepted Answer

A

Question 6

Passage: I have visited that city twice, and on both occasions it rained. The city must be rainy all through the year.
The reasoning is flawed because it

Accepted Answer

A

Question 7

Passage: Either we cut the school's music budget, or the school will go bankrupt. We certainly cannot let the school go bankrupt. So we must cut the music budget.
The reasoning is most vulnerable because it

Accepted Answer

B

Question 8

Passage: This newspaper is the most reliable in the country, because it never prints anything false. And we know it never prints anything false because, after all, it is the most reliable newspaper in the country.
The reasoning is flawed because it

Accepted Answer

B

Practice — Strengthen, Weaken and Flaw

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