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Anonymous
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Asked: 2022-12-21T08:11:53+05:30 In:

In a group of persons travelling in a bus, 6 persons can speak Tamil, 15 can speak Hindi and 6 can speak Gujarati. In that group none can speak any other language. If 2 persons in the group can speak two languages only and one person can speak all the three languages, then how many persons are there in the group?

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In a group of persons travelling in a bus, 6 persons can speak Tamil, 15 can speak Hindi and 6 can speak Gujarati. In that group none can speak any other language. If 2 persons in the group can speak two languages only and one person can speak all the three languages, then how many persons are there in the group?

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0%(a) 21 ( 0 voters )
0%(b) 22 ( 0 voters )
50%(c) 23 ( 1 voter )
50%(d) 24 ( 1 voter )
Based On 2 Votes

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1 Answer

  1. Anonymous

    Ans (c) 23

    Let a = speak one language
    Let b = speak two languages
    Let c = speak three languages
    then:
    a+2b+3c = 6+15+6
    a+4+3 = 27
    a = 20
    Total number of persons in the group = 20+2+1 = 23

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