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What percentage of students in the class know Spanish?

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What percentage of students in the class know Spanish?  [#permalink]

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New post 05 Apr 2018, 03:36
00:00
A
B
C
D
E

Difficulty:

  75% (hard)

Question Stats:

43% (02:15) correct 57% (01:06) wrong based on 32 sessions

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What percentage of students in the class know Spanish?

(1) 50% students in the class know English; 20% know French
(2) 30% of those who know English, know Spanish and 50% of those who know French, know Spanish. All those who know neither English nor French, know Spanish.

Source: ExpertsGlobal
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Re: What percentage of students in the class know Spanish?  [#permalink]

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New post 05 Apr 2018, 03:56
benejo wrote:
What percentage of students in the class know Spanish?

(1) 50% students in the class know English; 20% know French
(2) 30% of those who know English, know Spanish and 50% of those who know French, know Spanish. All those who know neither English nor French, know Spanish.

Source: ExpertsGlobal



Even after combining the two statements, the intersection of French and English is unknown which is needed to reach to the conclusion.

I feel the question could have been better if it were not a poorly worded question.

Answer: option E
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Re: What percentage of students in the class know Spanish? &nbs [#permalink] 05 Apr 2018, 03:56
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