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Help: How many cashiers McDonald has - Brain teaser

Anonymous A

Dear all,

Thank you in advance for your kind support, I am quite new at case interviews.

Since you are for sure more experienced than me, I would like to ask for your kind help.

Last case interview I had, I have been asking the following question:

"How many cachiers does a McDonald have?".

How would you structure assumptions and solutions? I know that cachiers can represent a bootleneck for a McDonald.

Thank you in advance, You will save a collegue that has no idea how to solve this!

(edited)

Constance P replied on 11/30/2017

Hello! In order for you to find out the answer, I would consider looking at these factors: (this way you find it out yourself and you can learn from it :) )

- How many clients does a McDonald have

- How many hours is a McDonalds open for

- How much time do they spend waiting in line & ordering (maybe even do peak and off peak)

- How much time does a menu take to make and how many can the kitchen make per hour

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