Directions (Question Nos. 49 to 50) : Arav, Erav, Ina, Ona and Uria are employees who work 8-hour shifts in company C. Company C has three different 8-hour shifts that start from 6 AM, 10 AM and 2 PM. The company (office) is closed (or locked) from 10 PM to 6 AM.
The company provides pick up and drop off for these employees. The same car is used for this purpose. Hence, employees who work the same 8-hour shift arrive and leave the office (that is, company premises) together. Furthermore, those who leave the office at a particular time always get to meet those who arrive at that time. And those who are in the office at the same time always get to meet all others in the office at that time. None of them arrive earlier than the start of their shift or leave later than the end of their shift. And none of them works more than one shift on any day. And no shift goes without any employees.
On a working day, all of them are present and report to office at the starting times of their respective shifts. On that day, Arav is not the last to leave the office. Erav and Ina do not come together to office on that day. Uria is not the first to reach office on that day. Note that if two or more people reach office at 6 AM, we say that they reach office first on that day and if two or more people leave office at 10 PM, we say that they leave office last on that day. If two or more people arrive first, we say each of them arrives first. Similarly, if two or more people leave last, we say each of them leaves last.
Answer each question below, independent of the other questions. That is, in addition to the information given above, if additional information is given in a question, that additional information holds only for that question and not for the other questions in the section.
49. On the given working day, if Arav is not the first to arrive at office, and if only one of all the employees reaches office at 10 AM, then which of the following must hold ?