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10 percent of all the pigs got cholera and died.

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10 percent of all the pigs got cholera and died.  [#permalink]

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New post 16 Mar 2018, 07:44
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Difficulty:

  45% (medium)

Question Stats:

59% (02:08) correct 41% (02:04) wrong based on 28 sessions

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10 percent of all the pigs got cholera and died. And also 50 percent of the pigs that got cholera did not die. What percent of all the pigs got cholera?

(A) 20%
(B) 30%
(C) 35%
(D) 40%
(E) 45%

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Re: 10 percent of all the pigs got cholera and died.  [#permalink]

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New post 16 Mar 2018, 07:54
itisSheldon wrote:
10 percent of all the pigs got cholera and died. And also 50 percent of the pigs that got cholera did not die. What percent of all the pigs got cholera?

(A) 20%
(B) 30%
(C) 35%
(D) 40%
(E) 45%



Assume the total number of pigs to be 200, 10% got cholera and died -> 20 pigs died.
Since 50% of the pigs that got cholera didn't die, the total pigs who got cholera must be 40

Therefore, the total percentage of pigs that got cholera is \(\frac{40}{200} = 20%\)(Option A)
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Re: 10 percent of all the pigs got cholera and died.  [#permalink]

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New post 16 Mar 2018, 08:10
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Re: 10 percent of all the pigs got cholera and died. &nbs [#permalink] 16 Mar 2018, 08:10
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10 percent of all the pigs got cholera and died.

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