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Instruction for questions 1 to 6:
A journal plans to publish 18 research papers, written by eight authors (A, B, C, D, E, F, G,
and H) in four issues of the journal scheduled in January, April, July and October. Each of the
research papers was written by exactly one of the eight authors. Five papers were
scheduled in each of the first two issues, while four were scheduled in each of the last two
issues. Every
author wrote at least one paper and at most three papers. The total number of papers
written by A, D, G and H was double the total number of papers written by the other four
authors. Four of the authors were from India and two each were from Japan and China.
Each author belonged to exactly one of the three areas - Manufacturing, Automation and
Logistics. Four of the authors were from the Logistics area and two were from the
Automation area. As per the journal policy, none of the authors could have more than one
paper in any issue of the journal.
The following facts are also known.
1. F, an Indian author from the Logistics area, wrote only one paper. It was scheduled in
the October issue.
2. A was from the Automation area and did not have a paper scheduled in the October
issue.
3. None of the Indian authors were from the Manufacturing area and none of the
Japanese or Chinese authors were from the Automation area.
4. A and H were from different countries, but had their papers scheduled in exactly the
same issues.
5. C and E, both Chinese authors from different areas, had the same number of papers
scheduled. Further, E had papers scheduled in consecutive issues of the journal but C
did not.
6. B, from the Logistics area, had a paper scheduled in the April issue of the journal.
7. B and G belonged to the same country. None of their papers were scheduled in the
same issue of the journal.
8. D, a Japanese author from the Manufacturing area, did not have a paper scheduled
in the July issue.
9. C and H belonged to different areas.
Q.5)
Which of the following statements is FALSE?
[1] There were exactly two papers by authors from Manufacturing area in the January issue.
[2] There was exactly one paper by an author from Manufacturing area in the April issue.
[3] There was exactly one paper by an author from Logistics area in the October issue.
[4] There were exactly two papers by authors from Manufacturing area in the July issue.

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