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22 Oct 2021, 09:37
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
66% (01:23) correct
34%
(02:00)
wrong
based on 153
sessions
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Bill earns more commission than does Sandra. But since Andrew earns more commission than does Lisa, it follows that Bill earns more commission than does Lisa.
Any of the following, if introduced into the argument as an additional premise, makes the argument above logically correct EXCEPT:
A. Andrew earns more commission than Bill
B. Sandra earns more commission than Lisa
C. Sandra earns more commission than Andrew
D. Sandra and Andrew earn the same amount of commission
E. Bill and Andrew earn the same amount of commission
Any of the following, if introduced into the argument as an additional premise, makes the argument above logically correct EXCEPT:
A. Andrew earns more commission than Bill
B. Sandra earns more commission than Lisa
C. Sandra earns more commission than Andrew
D. Sandra and Andrew earn the same amount of commission
E. Bill and Andrew earn the same amount of commission
22 Oct 2021, 22:55
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B>S
A>L
Find what does not prove that B>L.
A. Andrew earns more commission than Bill Possible that A>L>B. Which means, B can be < L - correct option
B. Sandra earns more commission than Lisa B>S>L - incorrect
C. Sandra earns more commission than Andrew B>S>A>L - incorrect
D. Sandra and Andrew earn the same amount of commission B>S; S=A; B>A ==> B>L - incorrect
E. Bill and Andrew earn the same amount of commission[/quote] - incorrect
A>L
Find what does not prove that B>L.
A. Andrew earns more commission than Bill Possible that A>L>B. Which means, B can be < L - correct option
B. Sandra earns more commission than Lisa B>S>L - incorrect
C. Sandra earns more commission than Andrew B>S>A>L - incorrect
D. Sandra and Andrew earn the same amount of commission B>S; S=A; B>A ==> B>L - incorrect
E. Bill and Andrew earn the same amount of commission[/quote] - incorrect
15 Feb 2022, 04:12
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The question asks for an additional premise that does NOT make the argument logically correct. Adding A to the information given in the passage leaves open the possibility that, in order of commission, the people rank: Andrew, Lisa, Bill, Sandra. Because this order is contrary to the conclusion of the argument, A leaves open the possibility that the conclusion of the argument is false; it is thus the best answer. By contrast, any of other choices, when added to the information that the commission Bill earns is greater than that of Sandra and that the commission Andrew earns is greater than that of Lisa, makes the conclusion-that Bill earns more commission than Lisa-follow logically.
Answer: A
Answer: A
