Job Interview Scheduling

CAT 2018 Slot 2 · DILR · Hard · Logical Reasoning

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Passage / data set

Seven candidates, Akil, Balaram, Chitra, Divya, Erina, Fatima, and Ganeshan, were invited to interview for a position. Candidates were required to reach the venue before 8 am. Immediately upon arrival, they were sent to one of three interview rooms: 101, 102, and 103. The following venue log shows the arrival times for these candidates. Some of the names have not been recorded in the log and have been marked as '?'.

Time7:10 am7:15 am7:25 am7:30 am7:40 am7:45 am
PersonAkil, ???ChitraFatima?

Additionally here are some statements from the candidates:

  • Balaram: I was the third person to enter Room 101.
  • Chitra: I was the last person to enter the room I was allotted to.
  • Erina: I was the only person in the room I was allotted to.
  • Fatima: Three people including Akil were already in the room that I was allotted to when I entered it.
  • Ganeshan: I was one among the two candidates allotted to Room 102.

Question 1 of 4

What best can be said about the room to which Divya was allotted?

  1. A.

    Either Room 101 or Room 102

  2. B.

    Definitely Room 103

  3. C.

    Definitely Room 101

  4. D.

    Definitely Room 102

Answer

C

Explanation

Fatima entered at 7:40 am and found 3 people including Akil in her room. So her room has 4 people total (Room 101). Erina was the only person in her room (Room 103). Ganeshan's room has 2 people (Room 102). Total candidates =4+1+2=7= 4 + 1 + 2 = 7. Since Room 101 has 4 people (Akil, 2 others, Fatima) and Balaram was 3rd to enter Room 101, Divya must be one of the people in Room 101. Thus Divya was Definitely in Room 101.

Question 2 of 4

Who else was in Room 102 when Ganeshan entered?

  1. A.

    No one

  2. B.

    Akil

  3. C.

    Divya

  4. D.

    Chitra

Answer

A

Explanation

Room 102 has 2 candidates: Ganeshan and Chitra. Since Chitra arrived at 7:30 am and was the LAST person to enter her room, Ganeshan must have entered Room 102 before Chitra. Thus, when Ganeshan entered, no one else was in Room 102.

Question 3 of 4

When did Erina reach the venue?

  1. A.

    7:45 am

  2. B.

    7:10 am

  3. C.

    7:15 am

  4. D.

    7:25 am

Answer

A

Explanation

Room 103 has only Erina. The 7 people are distributed across the slots:

  • 7:10 am: Akil, Divya/Balaram/Ganeshan
  • 7:15 am: Divya/Balaram/Ganeshan
  • 7:25 am: Divya/Balaram/Ganeshan
  • 7:30 am: Chitra (Room 102)
  • 7:40 am: Fatima (Room 101)
  • 7:45 am: Erina (Room 103)

Erina reached the venue at 7:45 am.

Question 4 of 4

If Ganeshan entered the venue before Divya, when did Balaram enter the venue?

  1. A.

    7:25 am

  2. B.

    7:45 am

  3. C.

    7:10 am

  4. D.

    7:15 am

Answer

A

Explanation

Room 101 order: Akil (1st), then someone (2nd), then Balaram (3rd), then Fatima (4th). If Ganeshan entered before Divya, then Ganeshan was at 7:10 am or 7:15 am. Divya entered as 2nd person in Room 101 at 7:15 am, and Balaram entered 3rd at 7:25 am.

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