Question #1580

Why D?

Started by chamoritta112 · started 2018-03-08 09:32 · last activity 2018-03-09 09:44 · 2 replies

Why is D the correct answer? E also seems like it could be the answer too. I don't understand how statement E ("some successful entrepreneurs work less than 18 hours a day") could also be true. After all, statement E is diagramed as: SE -some- not WAL18H and the first premise in the stimulus is diagramed as either "SE - most - WAL18H" or "WAL18H - some - SE". I thought quantity statements don't have contrapositives.

Replies

  1. Mehran · 2018-03-08 22:57

    @chamoritta112 (D) says, "Some entrepreneurs who work at least 18 hours a day are happy." This cannot be true because we know that anyone who works at least 18 hours a day does not have time for leisure activities and any entrepreneur who does not have time for leisure activities is not a happy entrepreneur. W>18hrs ==> not LA ==> not HE (D) is saying W>18hrs-some-HE which directly conflicts (i.e. shows sufficient without necessary). Let's compare with (E), "Some successful entrepreneurs work less than 18 hours a day." Nothing in the stimulus conflicts with (E) so (E) could be true. The fact that "most successful entrepreneurs work at least 18 hours a day" that does not rule out the possibility that there is a successful entrepreneur who works less than 18 hours per day. Hope that helps! Please let us know if you have any other questions.

  2. chamoritta112 · 2018-03-09 09:44

    Thanks for the explanation!

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