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Question 122
In a class of 50 students, 23 speak English, 15 speak Hindi and 18 speak Punjabi. 3 speak only English and Hindi, 6 speak only Hindi and Punjabi and 6 speak only English and Punjabi. If 9 can speak only English, then how many students speak all the three languages?
Solution
The total students who speak English are = 23
According to the venn diagram = $$9+3+6+x=23$$
=> $$x=23-18=5$$
$$\therefore$$ 5 students speak all the three languages.
=> Ans - (D)
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