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There are 21 persons and there are three languages - French, German and Japanese. 10 persons speak German, 12 persons speak Japanese, and 10 persons s
Question

There are 21 persons and there are three languages - French, German and Japanese. 10 persons speak German, 12 persons speak Japanese, and 10 persons speak French. 4 can speak only French and 5 can speak only Japanese. 4 can speak French as well as German. 3 persons can speak all languages. How many persons speak Japanese and German?

A.

2

B.

3

C.

4

D.

1

Correct option is A

Given:
There are 21 persons and there are three languages - French, German and Japanese.
10 persons speak German, 12 persons speak Japanese, and 10 persons speak French.
4 can speak only French and 5 can speak only Japanese.
4 can speak French as well as German.
3 persons can speak all languages.
From the given information Venn diagram will be shown bellow and mark also: 
So, there are 2 people speak Japanese and German.
Thus, the correct option is: (a)

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