No student who arrived after 9 a.m. was allowed to sit the paper. Chidi sat the paper. Which statement must be true?
AChidi arrived exactly at 9 a.m.
BChidi arrived after 9 a.m.
CChidi arrived before 8 a.m.
DChidi did not arrive after 9 a.m.CORRECT
JUPEBUse of EnglishLogical Reasoning
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Why the answer is D, and why the others tempt you.
Everyone who arrived after 9 a.m. was excluded, and Chidi was not excluded, so Chidi cannot have arrived after 9 a.m. The statements give no information about his exact arrival time, so the claims of arriving exactly at nine or before eight go beyond what is known.
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