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In a group of 1000 people

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by gmatdriller » Sat Mar 29, 2014 6:23 am
In a group of 1000 people, each person is either left-handed or right-handed
but not both. 80% of the females are left-handed, and 84% of the right-handed
people are male. How many people are right-handed?

1) There are 600 males in the group
2) There are 180 left-handed males in the group
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Source: — Data Sufficiency |

by Brent@GMATPrepNow » Sat Mar 29, 2014 6:43 am
gmatdriller wrote:In a group of 1000 people, each person is either left-handed or right-handed
but not both. 80% of the females are left-handed, and 84% of the right-handed
people are male. How many people are right-handed?

1) There are 600 males in the group
2) There are 180 left-handed males in the group
I'm assuming you got that question from this video.
If not, here's the full solution:
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Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
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