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10 percent of all the pigs got cholera and died. And also 50 percent o

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10 percent of all the pigs got cholera and died. And also 50 percent o  [#permalink]

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New post 21 Jun 2019, 00:04
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A
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Question Stats:

84% (02:05) correct 16% (02:11) wrong based on 31 sessions

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Joined: 22 Nov 2018
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Re: 10 percent of all the pigs got cholera and died. And also 50 percent o  [#permalink]

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New post 21 Jun 2019, 00:10
[align=][/align]
Bunuel 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%


If 10% of death is 50% of Cholera ( as 50% that got did not die, so 50% died) so total Cholera is 20% IMO A
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Re: 10 percent of all the pigs got cholera and died. And also 50 percent o  [#permalink]

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New post 21 Jun 2019, 00:58
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Bunuel 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%


Image
50 percent of the pigs that got cholera did not die
--> 50 percent of the pigs that got cholera have died
--> 50% of x = 10
--> 50/100*x = 10
--> x = 10*100/50 = 20

IMO Option A

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Re: 10 percent of all the pigs got cholera and died. And also 50 percent o  [#permalink]

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New post 21 Jun 2019, 11:00
Bunuel 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%


2x2 matrix
--- c---nc ----total
die-10--- -----
nd--.5x-- ---- --
tota x --- ---- 100
x * 50/100 = 10
x = 20%
IMO A
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Re: 10 percent of all the pigs got cholera and died. And also 50 percent o  [#permalink]

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New post 21 Jun 2019, 14:45
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1/2 the pigs with cholera did not die, so the other 1/2 with cholera did die. But that's 10% of the pigs, so 20% got cholera in total.
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Re: 10 percent of all the pigs got cholera and died. And also 50 percent o   [#permalink] 21 Jun 2019, 14:45
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