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png did they consider children who have inflammation and

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Intern
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Joined: 13 Apr 2009
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png did they consider children who have inflammation and [#permalink]

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New post 04 May 2009, 01:54
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did they consider children who have inflammation and fever?

please show your calc

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Manager
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Joined: 08 Feb 2009
Posts: 144

Kudos [?]: 61 [0], given: 3

Schools: Anderson
Re: sick children [#permalink]

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New post 04 May 2009, 04:00
Yes, they considered the number of children who have Inflammation AND Fever.


Lets solve for it.

1000 = Total number of Children = N

F = People who have only Fever (and nothing else)

I = Inflammation only (and nothing else)

x = people who have Inflammation AND Fever

y = Not affected by anything at all

1000 = y + I + F + x

(1) y = 880, NOT SUFFICIENT because we need values for two more variables

(2) F + x = 20, NOT SUFFICIENT because we need values for one more variable. You might have got confused by assuming that Number of Children who have Fever implies the number that have FEVER ONLY.


Combining, 1000 = 880 + I + 20.

Solve for I to get the answer.

Hope it helps.

Kudos [?]: 61 [0], given: 3

Re: sick children   [#permalink] 04 May 2009, 04:00
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png did they consider children who have inflammation and

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