Migraine

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logitech: Legendary Member; Posts: 2134; Joined: Mon Oct 20, 2008 11:26 pmFollowed by: 25 members; Thanked: 237 times; GMAT Score:730

by logitech » Wed Feb 04, 2009 3:49 pm

Thanks,

OA A

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Last edited by logitech on Thu Feb 05, 2009 9:03 am, edited 1 time in total.

LGTCH
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Source: Beat The GMAT — Critical Reasoning | Wed Feb 04, 2009 3:49 pm

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Ian Stewart: GMAT Instructor; Posts: 2623; Joined: Mon Jun 02, 2008 3:17 amFollowed by: 355 members; Location: Montreal; Thanked: 1090 times; GMAT Score:780

by Ian Stewart » Wed Feb 04, 2009 8:32 pm

The question gives no indication as to which type of migraine is more common, so B is not correct. C is not correct; we know that siblings of classical migraine sufferers are more likely to have classical migraines, regardless of their spouse. The question doesn't mention children at all, so D is out of scope. There is also nothing in the passage to indicate that E should be true.

The correct answer is A. Siblings and spouses of common migraine sufferers are both twice as likely to suffer common migraines. Since spouses are not related by heredity, this suggests that some environmental factor is involved. On the other hand, someone is four times more likely to suffer a classical migraine if they have a sibling who does, but no more likely if their spouse does. Siblings are related by heredity; spouses are not. This suggests heredity plays a role in classical migraines.

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4meonly: Legendary Member; Posts: 891; Joined: Sat Aug 16, 2008 4:21 amFollowed by: 1 member; Thanked: 27 times; GMAT Score:660(

by 4meonly » Thu Feb 05, 2009 6:08 am

I can not understand the last sentence in this argument. Can somebody help?

However, I answered A )))

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gmatmachoman: Legendary Member; Posts: 2326; Joined: Mon Jul 28, 2008 3:54 amFollowed by: 2 members; Thanked: 173 times; GMAT Score:710

by gmatmachoman » Thu Feb 05, 2009 6:09 am

That was a solid reply.My vote is for (A)

Plz post the OA

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Brad.C: Master | Next Rank: 500 Posts; Posts: 100; Joined: Tue Aug 05, 2014 11:14 am

by Brad.C » Fri May 13, 2016 2:15 pm

I will go with A

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