Reasoning - Data Suffciency - Discussion

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Q.

Question: Four subjects - Physics, Chemistry, Mathematics and Biology - were taught in four consecutive periods of one hour each starting from 8.00 a.m. At what time was the Chemistry period scheduled ?
Statements:
I.Mathematics period ended at 10.00 a.m., which was preceded by Biology.
II.Physics was scheduled in the last period.
III.Mathematics period was immediately followed by Chemistry.  .                          


A. Only I B. Either I only or II only
C. Only II D. Only II and III

Answer: Option D
Explaination:

 





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