Adiliah, Bao, Davi, Laszlo, Saleema, and Yarah work in a firms legal

Question

Adiliah, Bao, Davi, Laszlo, Saleema, and Yarah work in a firm’s legal department. Adiliah supervises Bao and Davi, Davi supervises Laszlo, and Laszlo supervises Saleema and Yarah. These are the only supervisory relationships involving these six employees. Each document that the department processes must be initially reviewed by exactly one department member. Each document reviewed by a department member must then be reviewed by that person’s supervisor. No other rules require anyone else to review any document. Anyone not required to review a given document will not review it.

Select  Laszlo among reviewers  for the maximum number of department members that could have reviewed a single document if Laszlo was among the reviewers. Select  Adiliah among reviewers  for the maximum number of department members that could have reviewed a single document if Adiliah was among the reviewers.

Make only two selections, one in each column.

ID: 100390

Bunuel · Accepted Answer

Adiliah, Bao, Davi, Laszlo, Saleema, and Yarah work in a firm’s legal department. Adiliah supervises Bao and Davi, Davi supervises Laszlo, and Laszlo supervises Saleema and Yarah. These are the only supervisory relationships involving these six employees. Each document that the department processes must be initially reviewed by exactly one department member. Each document reviewed by a department member must then be reviewed by that person’s supervisor. No other rules require anyone else to review any document. Anyone not required to review a given document will not review it.

Select Laszlo among reviewers for the maximum number of department members that could have reviewed a single document if Laszlo was among the reviewers. Select Adiliah among reviewers for the maximum number of department members that could have reviewed a single document if Adiliah was among the reviewers.

Make only two selections, one in each column.

Let’s map the supervision chain:

Adiliah --> supervises Bao, Davi
Davi --> supervises Laszlo
Laszlo --> supervises Saleema, Yarah

Rules:

Each document starts with exactly one initial reviewer.
It then must be reviewed by that person’s supervisor, then that supervisor’s supervisor, and so on up the chain.
No one else reviews it.

Case 1: Laszlo is among the reviewers

For Laszlo to review a document, it could have been initially reviewed by someone he supervises (Saleema or Yarah).

Example: If Saleema starts: Saleema --> Laszlo --> Davi --> Adiliah.

That chain has 4 reviewers total (Saleema, Laszlo, Davi, Adiliah).

So, maximum = 4.

Case 2: Adiliah is among the reviewers

For Adiliah to review a document, the initial reviewer could be anyone in the department.

Example: If Saleema starts: Saleema --> Laszlo --> Davi --> Adiliah.

That’s again 4 reviewers total.

So, maximum = 4.

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Apt0810 · Answer

Here A supervises B and D
---> D supervises L
---------> L supervises S and Y

When a document is reviewed by one employee, then the next person to review it is that employees's supervisor.

So if S reviews a document then L will also review it,and if L reviews it then D will also review it and if D reviews it then A will also review it,

So on the basis of above example (Best possible case from bottom to up), and per the question if Laszlo is among the reviewers than max number of people in the chain would be 4

Similarly if Adiliah is among the reviewers than max number of people in the chain would be 4

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bM22 · Answer

The chain that makes up :

A --> B, D --> L ---> S, Y.
The left hand side denoting who reviews, and the right side, the one who gets reviewed.

Now  if Laszlo (L) is among the reviewers :
Assuming a document comes by S, it would be reviewed by L, which in turn would be reviewed by D, which again would be reviewed by A. So if Laszlo (L) is among the reviewers -  at max 4 people  would review that one document.

Similarly is Adiliah (A) is among reviewers:   - reasoning being same as above, any number of people could be reviewers, but the maximum people who would review  is 4.

Answer: 4,4

Sajjad1994 · Answer

Official Explanation

If Laszlo reviews a document, so must his supervisor, Davi, and Davi’s supervisor, Adiliah. If Laszlo is the initial reviewer, then exactly three department members would review the document. However, if Laszlo reviews a document but is not the initial reviewer, the initial reviewer must be either Saleema or Yarah for a maximum total of 4 reviewers of the document.

The correct answer is 4.

If Adiliah reviews a document, no department members will review the document after her. If Adiliah is the initial reviewer, then, exactly 1 department member will review the document. If Bao or Davi is the initial reviewer, then the document will be reviewed by exactly 2 department members. If Laszlo is the initial reviewer, then the document will be reviewed by exactly 3 department members. Finally, if Saleema or Yarah is the initial reviewer, then exactly 4 department members will review the document. Since no one else can be the initial reviewer, 4 must be the maximum number of reviewers of a single document for which Adiliah is among the reviewers.

The correct answer is 4.

Engineer1 · Answer

chetan2u  and  Bunuel :(

I selected 3 for Lazlo, if Lazlo was among the reviewers (Initial review for 1 document + Review of doc reviewed by Saleema + Review of doc reviewed by Yarah).
5 for Adilaah, using the same logic. Any explanation is helpful. Thank you.

Select Laszlo among reviewers for the maximum number of department members that could have reviewed a single document if Laszlo was among the reviewers. Select Adiliah among reviewers for the maximum number of department members that could have reviewed a single document if Adiliah was among the reviewers

chetan2u · Answer

I would agree not the best of the language. Could have been made in a way to be less ambiguous.

Reviewed by a department member to be reviewed by that member’s supervisor.

One way could be: The document is always reviewed by the supervisor of any member reviewing the document.

So, the above would mean that the entire chain gets involved: A(member)=>B(A’s supervisor) => C(B’s supervisor) => and so on till there is no supervisor on top.

KarishmaB · Answer

Video Solution to this Question is here:

https://www.youtube.com/watch?v=K-weMRndUEA

Md84 · Answer

My issue is completely different, the way I interpreted.. max number of people who could have reviewed means if

Laszlo is the reviewer, it “could” have been reviewed by S or Y then L D and A making it a total of 5 possible that “could have” reviewed

cheshire · Answer

Considering it asks for the maximum amount of people who could review a single unique document, and S or Y cant both review it, I don't think it's that confusing. But that's just me

weez · Answer

I also think Adiliah should be 3, and not 4. Because, wouldn't "that person's supervisor" mean direct supervisor? Or am I have reading comprehension problems...??

cheshire · Answer

So we are not just asking:
 
Instead, the question is:
 
You're right that  Adiliah can't be the initial reviewer , since she has no supervisor.
But that doesn’t mean she can only be involved in chains that include only Bao and Davi (her direct reports).
Why?
Because a document reviewed initially by someone like Yarah, for instance, could follow this valid chain:

Yarah → Laszlo → Davi → Adiliah

Each person reviews their direct subordinate's review —  exactly according to the rules .
-One document
-Initial reviewer: Yarah
-Chain of supervisors
-Ends with Adiliah
-Everyone involved has a reason to be in the chain
-Total reviewers:  4  → Yarah, Laszlo, Davi, Adiliah
So Adiliah is among the reviewers, and the maximum number of department members who could have reviewed a document is  4 .

svsivakrishna · Answer

The wording in the question could have been better.I thought that the review ends after done by the immediate supervisor.My bad.

gabrielta · Answer

Each document that the department processes must be initially reviewed by  exactly one department member . Each document reviewed by a department member must then be reviewed by  that person’s supervisor .  No other rules require anyone else to review any document . Anyone  not required  to review a given document  will not  review it.

I can say that this question statement is too ambiguous for readers. They say "reviewed by exactly 1 member" then reviewed by that person's supervisor. No other rules require anyone elso to review and who is not required will not review it.
>> Does this mean that it's mandatory for just 2 members (one person and his/her supervisor) to review 1 single doc?

They say "will not", not "may not". I'm so confused because I think the correct answer is 2-2, not 4-4. If it follows 4-4, the maximum number of members that could have reviewed a single doc will always be 4, except for the one including B.

=> This is a ridiculous question with ambiguous wording => I don't think this gonna be a good thing to test candidates' ability, rather than making it clear and letting the logical thinking make it.

cheshire · Answer

The document works it's way up the command chain if it stars at the bottom; meaning it will be reviewed by 4 people total since most supervisors have their own supervisor as well. If it doesn't start at the bottom, the answer won't be 4. Someone else earlier in this thread posted a diagram of the document review order which I thought was helpful and might help you too

.

Yugank_Aggarwal · Answer

I get that for Laszlo, the max number of reviewers were 4, but for Adilah, why wouldn't it be 5?

Assuming that B reviews, then A reviews (1st)
D reviews, then A reviews (2nd)
L reviews, then D reviews, then A (3rd)
S, then L, then D, then A (4th)
Y, then L, then D, then A (5th)

So wouldn't there be a possibility that 5 members may be involved?

Thank you

Bunuel · Answer

You’re mixing multiple starting reviewers together. For any single document, there’s only one initial reviewer, and then only that reviewer’s direct chain of supervisors reviews it. The question is very simple: whoever the reviewer is, the maximum number of reviewers could be four, because there are only four layers in the hierarchy structure.

Check  HERE  for more.

ChiranjeevSingh · Answer

Passage Analysis

Adiliah, Bao, Davi, Laszlo, Saleema, and Yarah work in a firm's legal department.

These six people work in a company legal department. I also observe that all six names start with different letters, so I can just call them A, B, D, L, S, Y.

Adiliah supervises Bao and Davi, Davi supervises Laszlo, and Laszlo supervises Saleema and Yarah.

A supervises B and D; D supervises L, so I can see a hierarchical relationship here. L reports to D and D in turn reports to A. L supervises S and Y, so we have a hierarchy of reporting here.

These are the only supervisory relationships involving these six employees.

The above-mentioned supervisory relationships are the only such relationships among these six employees, so there are no more supervisory relationships beyond the above-mentioned ones.

Each document that the department processes must be initially reviewed by exactly one department member.

Any document processed by the department, which is the legal department here, must be initially reviewed by exactly one department member. The initial review is done by exactly one member.

Each document reviewed by a department member must then be reviewed by that person's supervisor.

Any document reviewed by a member has to be reviewed by that person's supervisor, so the document has to move upward in the hierarchy. And the statement says that this is not optional; this is compulsory.

No other rules require anyone else to review any document. Anyone not required to review a given document will not review it.

These two statements clarify that the document just moves from that initial reviewer to people above in the hierarchy from that person. There is no other review involved.

Question Analysis

Select Laszlo among reviewers for the maximum number of department members that could have reviewed a single document if Laszlo was among the reviewers.

The condition is that L was among the reviewers. What is the maximum number of reviewers for that particular document?

In this case, L could have been the initial reviewer. In that case, the document starts with L and then moves upward in the hierarchy. Or the document could have started from the hierarchy below and could have come to L and then moved upwards from L.

Given that we are looking for the maximum number of reviewers, we should consider that the document started from the levels below L. So, let's say the document started with S, then it came to L, then it will go to D, and then finally it will go to A. So the maximum number of reviewers for this document will be  four .

The minimum number will be three if L were the initial reviewer. In that case, it will be reviewed by L, then D, and then finally A.

Select Adiliah among reviewers for the maximum number of department members that could have reviewed a single document if Adiliah was among the reviewers.

Given the hierarchy of supervision given above, the maximum number of reviewers for any document can be only four, and every document has to end with A because he is at the top of the hierarchy.

Now if A is among the reviewers, it could be the initial reviewer. In that case, the total number of reviewers for the document will be one. But we are looking for the maximum number of reviewers here. The maximum number will be  four , as that is the number of levels in the hierarchy.

So the answers for both the parts is  four .

Adiliah, Bao, Davi, Laszlo, Saleema, and Yarah work in a firms legal

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GMAT Two-part Analysis (TPA) Questions

Adiliah, Bao, Davi, Laszlo, Saleema, and Yarah work in a firms legal

Prep Toolkit

615 to 715 in 15 Days (Ria's Strategies)

More than Quant/Verbal Abilities: Speed vs. Accuracy

745 with Only Self-Prep and GMAT Club

From 555 to 765: 210-point Improvement

Perfect 805 Score Debrief by Julia

My Rewards