Choose from the four diagrams given below,the one that illustrates the relationship among languages,French,and German.

Which of the following diagrams correctly represents Elephants,Wolves,and Animals?

Which one of the following Venn diagrams correctly illustrates the relationship among the classes: carrot,food,vegetable?

Choose the Venn diagram which best illustrates the three given classes: Diseases,leprosy,scurvy.

Choose from the four diagrams given below,the one that illustrates the relationship among Languages,French,and German.

$A$ survey was conducted on a sample of $1,000$ 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: