A survey was conducted on a sample of 1000 persons with reference to their knowledge of English, French and German. The results of the survey are presented in the given Venn diagram. The ratio of the number of persons who do not know any of the three lang

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Q: 148 (IAS/1997)
A survey was conducted on a sample of 1000 persons with reference to their knowledge of English, French and German. The results of the survey are presented in the given Venn diagram. The ratio of the number of persons who do not know any of the three languages to those who know all the three languages is
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question_subject: 

Logic/Reasoning

question_exam: 

IAS

stats: 

0,6,6,0,6,1,5

keywords: 

{'venn diagram': [0, 1, 1, 1], 'languages': [0, 0, 1, 1], 'english': [1, 0, 0, 0], 'knowledge': [1, 1, 2, 4], 'german': [2, 1, 0, 1], 'survey': [1, 1, 2, 4], 'number': [0, 0, 0, 2], 'persons': [4, 4, 9, 10]}