In a group of persons travelling in a bus, 6 persons can speak Tamil,
In a group of persons travelling in a bus, 6 persons can speak Tamil, 15 can speak Hindi and 6 can speak Gujrati. In that group none can speak any other language. If 2 persons in the group can speak two languages and one person can speak all the three languages, then how many persons are there in the group?
(a) 21 (b) 22 (c) 23 (d) 24
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(d) Total number of Hindi, Tamil and Gujrati
speaking people = 15 + 6 + 6 = 27
Two persons of this group can speak 2 languages while one can speak 3 languages.
The third person who knows 3 languages can also speak 2 languages.
He should not be called on two places Hence,
number persons = 27 – 3 = 24
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