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How many persons are standing there in a straight line, all of them facing the north? I. Only one person stands to the left of Z. Only three person stand between Z and A. The person who is immediate right of A stand at the extreme right end of the line. II. Only two persons stand to the left of Z. Only two person stand between Z and H. H stand to the immediate right of A. A stands exactly in the middle of the line.

How many persons are standing there in a straight line, all of them facing the north? I. Only one person stands to the left of Z. Only three person stand between Z and A. The person who is immediate right of A stand at the extreme right end of the line. II. Only two persons stand to the left of Z. Only two person stand between Z and H. H stand to the immediate right of A. A stands exactly in the middle of the line. Correct Answer Data in statements I alone or in Statement II alone are sufficient to answer the question.

Given: Some persons are standing in a straight line, all of them facing north.

From statement I:

[ alt="Family Tree 91" src="//storage.googleapis.com/tb-img/production/18/08/Family%20Tree_91.PNG" style="height:83px; width:262px">

Only one person stands to the left of Z. Only three person stand between Z and A. The person who is immediate right of A stand at the extreme right end of the line.Hence, there are total 7 persons.Hence, data in statement I alone are sufficient to answer question.

From statement II:

[ alt="Family Tree 92" src="//storage.googleapis.com/tb-img/production/18/08/Family%20Tree_92.PNG" style="height:95px; width:262px">

Only two persons stand to the left of Z. Only two person stand between Z and H. H stand to the immediate right of A. A stands exactly in the middle of the line.

Hence, there are total 9 persons. Hence, data in statement II alone are sufficient to answer question.

Hence, Data in statements I alone or in Statement II alone are sufficient to answer the question.

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