Suri, who supervises a team of marketing strategists, is scheduling

Question

Suri, who supervises a team of marketing strategists, is scheduling a series of meetings for 5 days of the next business week. During the week, each of her 5 employees (Amani, Bianca, Camilo, Daniel, and Eita) will meet individually with every other of her employees, and also with her. Each employee will be scheduled for exactly one meeting each day. Suri has begun to schedule the meetings, and the meetings she has already scheduled are shown in the table. She has yet to finish scheduling the meetings for Thursday and Friday.

Day  
  Employee Meeting 1  
  Employee Meeting 2  
  Meeting With Suri  
 
  Monday 
 Amani and Bianca  
 Camilo and Daniel 
 Eita 
 
  Tuesday 
 Amani and Camilo 
 Bianca and Eita 
 Daniel 
 
  Wednesday 
 Amani and Daniel 
 Camilo and Eita 
 Bianca 
 
  Thursday 
 Amani and Eita 
 - 
 - 
 
  Friday 
 - 
 - 
 -

Based on the information provided and assuming Suri schedules the remaining meetings according to the criteria given, for each of the following pairs, select  Necessarily Thursday  if the pair must be scheduled to meet on Thursday. Otherwise, select  Not necessarily Thursday .

ID: 700235

KarishmaB · Accepted Answer

Take a holistic view first. There are 5 employees and each must meet every other during the week. So we need 5C2 = 10 meetings among themselves so 2 a day. So 4 employees will meet in 2 meetings with each other. The 5th employee will meet with the boss Suri. So everyone has exactly 1 meeting every day. Start with the blank that is obvious. Amani has had meetings with all 4 scheduled except Suri. So Friday will be Amani and Suri Day Employee Meeting 1 Employee Meeting 2 Meeting With Suri Monday Amani and Blanca Camilo and Daniel Eita Tuesday Amani and Camilo Bianca and Eita Daniel Wednesday Amani and Daniel Camilo and Eita Bianca Thursday Amani and Eita - Friday Amani and Suri - Amani Now only Camilo's meeting with Suri is pending. So Day Employee Meeting 1 Employee Meeting 2 Meeting With Suri Monday Amani and Blanca Camilo and Daniel Eita Tuesday Amani and Camilo Bianca and Eita Daniel Wednesday Amani and Daniel Camilo and Eita Bianca Thursday Amani and Eita - Camilo Friday Amani and Suri - Amani Now on Thursday Amani, Eita and Camilo are already booked. So Bianca and Daniel must meet on Thursday Day Employee Meeting 1 Employee Meeting 2 Meeting With Suri Monday Amani and Blanca Camilo and Daniel Eita Tuesday Amani and Camilo Bianca and Eita Daniel Wednesday Amani and Daniel Camilo and Eita Bianca Thursday Amani and Eita Bianca and Daniel Camilo Friday Amani and Suri - Amani Select Amani and Suri - Not necessarily Thursday Camilo and Suri - Necessarily Thursday Bianca and Daniel - Necessarily Thursday Discussion on an interesting non-Math DI question: https://youtu.be/yzeh388tkLQ

SKDEV · Answer

i - Amani cant meet on Thursday as he already has a meeting

ii & iii - 
we will have 3 meetings among employees that will be left -
B-C , B-D , D-E
for Suri, meeting with A and C will be left

A has to meet on Friday  with Suri, hence  C will meet on Thursday with Suri 
therefore B-C has to meet on Friday, as C cant have more than 1 meeting on Thursday
therefore B-D has to meet on Thursday, as B is already meeting C on Friday

Dooperman · Answer

Step By Step.
1) A’s meeting with S will be on Friday (From 1st column)

2) S’s meeting with C will be on Thursday (From 3rd column). Only remaining Day for S.

3) Now C is only left to meet B. And that will happen on Friday. Coz all other days for C are occupied.

4) Since B has already had meeting on Mon (A) , Tue (E) , Wed (S), and Friday (C). Hence B’s Meeting with D will be on Thursday.

Purnank · Answer

See in last column meeting with suri only A and C were left and look at the Thursday row A already mate Suri.  Hence For last column it has to be C for Thursday, and A will meet suri on Friday. 
That also eases pairing of  meeting 2 on Thursday which will be B and D.

adarshgmat25 · Answer

KarishmaB   GMATNinja   MartyMurray  Can you please help with this question? The OA does not seem to be correct.

BongBideshini · Answer

Step 1:  Amani's meeting is scheduled with all other employees except Suri. So, on Friday, Suri will have a meeting with Amani.
 Step 2:  After filling the Friday slot with Amani, Suri is left with Camilo to schedule a meeting on Thursday. Now, the remaining meeting-2 must be filled with the other two employees, i.e., Bianco and Daniel.
 Step 3:  On Friday, meeting-1 and meeting-2 can be arranged for the remaining two combinations: (Bianco, Camilo) and (Daniel, Eita), in any of the available time slots.

adarshgmat25 · Answer

Got it, Thanks.

Vivek1707 · Answer

Another quick way to solve this

Key constraint to note here is ---> one person can have only one meeting in a day.

1 Amani and Suri ---> Amani already has a meeting on Thursday, hence this will be Friday
2 Camilo and Suri ---> Suri already has a meeting on friday, hence this will be Thursday
3 Bianca and Daniel ---> This is the slightly tricky part

Approach ---> look at the table for who among Bianca and Daniel has meetings left with someone
If you look at the middle column you can immediately spot that Camilo doesn't have a meeting with Bianca (check all columns just to be safe)

Now we know Camilo already is meeting on Thursday, so Camilo and Bianca would meet on Friday
Since Biance is now meeting on Friday, Bianca and Daniel would meet on Thursday.

Suri, who supervises a team of marketing strategists, is scheduling

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Day	Employee Meeting 1	Employee Meeting 2	Meeting With Suri
Monday	Amani and Bianca	Camilo and Daniel	Eita
Tuesday	Amani and Camilo	Bianca and Eita	Daniel
Wednesday	Amani and Daniel	Camilo and Eita	Bianca
Thursday	Amani and Eita	-	-
Friday	-	-	-

Necessarily Thursday	Not necessarily Thursday
		Amani and Suri
		Camilo and Suri
		Bianca and Daniel

Day	Employee Meeting 1	Employee Meeting 2	Meeting With Suri
Monday	Amani and Blanca	Camilo and Daniel	Eita
Tuesday	Amani and Camilo	Bianca and Eita	Daniel
Wednesday	Amani and Daniel	Camilo and Eita	Bianca
Thursday	Amani and Eita	-	-
Friday	-	-	-

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Suri, who supervises a team of marketing strategists, is scheduling