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women wid red hair

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by pradeepkaushal9518 » Sat Apr 24, 2010 10:46 pm
what percent of of a group of people are women with red hair?

1.of the women in the group, 5 percent have red hair
2.of the men in the group 10 percent have red hair

plz explain with logis
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Source: — Data Sufficiency |
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by neoreaves » Sun Apr 25, 2010 1:32 am
IMO E

What we need to know --> (Red haired women)/Total x 100

1) 0.05 w = red hair women ...but doesn't tell us anything about the total

insufficient

2) only tells us about red haired men

c) combining doesn't help because we don't know the total numbers of women, men or the total population
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by akhpad » Sun Apr 25, 2010 5:37 am
Combine 1 and 2

......................Men (I)......................Women (II)...........Total (III)
Red heir ........ 1 .................................. 1 .......................
Not red heir ... 9 .................................. 4 .......................
.......................10................................. 5 .......................

There is no relation between Men and Women. So we cannot find total value of the group.

Answer: E
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