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29 Oct 2017, 02:00
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B
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Difficulty:
35%
(medium)
Question Stats:
68% (01:32) correct
32%
(01:28)
wrong
based on 206
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In Teetown 50 percent of the people have blue eyes and blond hair. What percent of the people in Teetown have blue eyes but do not have blond hair?
(1) 70 percent of the people in Teetown have blond hair.
(2) 60 percent of the people in Teetown have blue eyes.
(1) 70 percent of the people in Teetown have blond hair.
(2) 60 percent of the people in Teetown have blue eyes.
29 Oct 2017, 09:11
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The answer to the following question is B. I have solved the following problem by matrix method.
The following are the notations in the attached document.
BE: Blue Eyes
NBE: Not Blue Eyes
BH: Blond Hair
NBH: Not Blond Hair
The following are the notations in the attached document.
BE: Blue Eyes
NBE: Not Blue Eyes
BH: Blond Hair
NBH: Not Blond Hair
Attachments
IMG_3803.JPG [ 1.38 MiB | Viewed 4744 times ]
19 Nov 2017, 02:33
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1) 70% have blond hair. 70 - 50 = 20% have blond hair and non blue eyes. 30 % non blond hair. Overall NS
2) 60% have blue eyes. 40% have non blue eyes. if 50% are blond and blue, then 60 - 50 = 10% have blue eyes and non blond hair.
B is suff.
Kudos, please if you like this explanation
2) 60% have blue eyes. 40% have non blue eyes. if 50% are blond and blue, then 60 - 50 = 10% have blue eyes and non blond hair.
B is suff.
Kudos, please if you like this explanation
