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@isavinelli Күн бұрын
Question, at first you said since Blue Jellyfish eats Red Moss and Sea lettuce, we have to assume it eats equally from both, so 1500 each. Why when you are analyzing what Sea urchin will eat, which eats Sea Fan and Sea lettuce, you just take all the calories it needs from one source (Sea Fan) and not considering it taking the 775 calories left from the Sea Lettuce also? Why it is eating the 3000 straight from the Sea Fan? Thanks @prepmatter
@isavinelli Күн бұрын
@prepmatter
@deepansarvan355 2 күн бұрын
Percentage point difference in differences is 10. Kindly check and confirm. 23:02 Video timing
@beauty_starts_within79 3 күн бұрын
Can I not move yellow to the Middle (Step 1), move green to the far right (Step 2), move pink to the middle (Step 3), move green back to the far left (Step 4), move blue to the middle (Step 5), move green back to the far right (Step 6), move red to the middle (Step 7) and then move green to the middle (Step 8) ?
@nuradzfarnailmi6658 6 күн бұрын
Do we need to get all correct to get to the next stage?
@kinzashandi6667 7 күн бұрын
why you divided the the differnece between the lakes by 23 and not by 19
@lianchauying5645 8 күн бұрын
Just complete my PSG and wanna say thank you for having this walkthrough video, I went through my ecosystem game with no stress and completed within 15 minute. It just that I overspent too much time on using the on screen calculator and understanding the journals for Redrock part, despite the question and the long paragaph is easy. Will update here again if I pass the game and able to proceed to next round. Bless me ✨✨
@rhodadan5466 8 күн бұрын
Wish you luck
@simbasovetova8338 9 күн бұрын
Hi, I have had test yesterday and got invitation to PEI. I made ecosystem task in 18 minutes. I had to change some initially chosen participants, which made me feel nervous. But I managed to change them fastly. Thank you so much for your tutorial.
@Shynbek 11 күн бұрын
Thank you for the content! By following your tips, I was able to finish ecosystem task with enough time to triple check calculations. For Redrock, I definitely needed to do more practice questions. Hopefully in less then two weeks I will get a response from the firm.
@nicolasamaya5838 13 күн бұрын
Great video! Quick question... On a case like this, would it not have been beneficial asking a clarifying question regarding whether or not we are the only firm in the industry experiencing declining profits? I feel like that would have saved some time that would be better spent during the case. Then for example if the answer was "no, all other cement firms within the area are experiencing declining profits", how would the root cause analysis bucket change? Would you still communicate the quantitative causes with more of an emphasis on the qualitative causes? Thanks so much!
@Prepmatter 13 күн бұрын
Thank you for your question! We recommend not asking this question at the beginning of the interview. Most interviewers prefer that candidates delve deeper into the financials later in the discussion. It is generally good practice to start by internally understanding the root cause of the problem before inquiring whether it is specific to our client or a market-wide issue.
@akshathmanikandan9732 14 күн бұрын
why would sea urchin consume sea fan entirely, when it derives some of its caloric needs from sea lettuce? you should've clarified this part in the video
@akshathmanikandan9732 14 күн бұрын
why did u choose 'depth range' as opposed to the other major monitors given?
@Prepmatter 13 күн бұрын
the species are typically organized across three key depth ranges. So starting with this indicator will help eliminate two-thirds of the potential species.
@wiselily 16 күн бұрын
10:08 Thanks alot!!! I don't understand why Spade Fish was removed. Isn't it true that the ecosystem would survive even if Sea Urchin, instead of Spade Fish, was removed? If that's the case, the remaining calories for the Sea Fan would be 3,500 - 2,400 = 1,100, right?😮
@user-py9dq1qt4t 16 күн бұрын
Hi, I just took the PSG and it was terrifying. I also had the third task about categorizing microbes according to the attributes. It was mentioned nowhere on the web, and had a hard time getting through it. It might have been a new part of the game they're testing. My ecosystem creation game was somehow different(It had 4 levels and spent a lot of time working it out) too. I'm wondering if anyone had the same experience with me. Seriously, these guys are evolving so fast... anyway, your video was great! I did great on the first two tasks except the third one i screwed up thx to you. I appreciate it.
@Prepmatter 16 күн бұрын
Could you let us know which office you applied to? We only heard about this game a couple of weeks ago, and it is being piloted in only a few locations.
@user-py9dq1qt4t 16 күн бұрын
@@Prepmatter I applied to the Japan office.
@trader-traitor 17 күн бұрын
In the Redrock Study, Question 4 of the Analysis, why is the percentage difference calculated the way you did? I would think it is more ((summit-base)/summit)*100%
@kaijieyang6051 20 күн бұрын
the profit calculation assumes that profit factor remain the same over 5 years period.. what will be a good multiplier factor? Profit margin expected to increase or decrease YoY?
@Prepmatter 17 күн бұрын
In a real-life scenario, the revenue and costs would increase at around the same rate, and margins would likely stay the same. In the actual case interview, it might be a good idea to check with the interviewer if we should keep price, quantity, and costs constant over the next 5 years. In most cases, for simplicity, you can keep them constant. However, if the interviewer pushes you to consider a different solution, you could run an NPV analysis for 5 years with a discount rate of 10% (which is the most common WACC rate).
@siamonlemon9229 22 күн бұрын
Is the webcam required to do this test?
@Prepmatter 22 күн бұрын
No, it's not required.
@siamonlemon9229 22 күн бұрын
@@Prepmatter why not? That way people can pay someone to take the exam for them or maybe use some other unfair method
@Prepmatter 18 күн бұрын
@@siamonlemon9229 We totally agree!
@kanuraagkaushik97 25 күн бұрын
In Q4, why did you assume that Business Segment is at risk? We don't know if they are price sensitive. Whereas, BUDGET segment is intuitive and make sense to assume that they would be highly price sensitive.
@Prepmatter 13 күн бұрын
Surely, customers of budget hotels are more at risk compared to those at business hotels. However, both the 500 business and 300 budget hotels are still at risk, as their prices are higher compared to those of competitors.
@pedroalbano7007 26 күн бұрын
curious, why didnt you discussed about the loss in income from existing third party pathology services? dont the hospital profit from this third party services as well?
@Prepmatter 13 күн бұрын
Great point! I'm not sure if the interviewer mentioned it in the case, but we assumed that Pudong Hospital does not generate any revenue from their pathology referrals. Of course, the candidate should have clarified this.
@EmmanuelDada-kv9py 27 күн бұрын
Please how did you calculate the 3 dollar increase per tonne
@Prepmatter 26 күн бұрын
That's already provided in the exhibit. We just need to look at the legend to understand that the red dot signifies the price point. By referring to the Y-axis on the right, you can see that the price increased from $72 to $75 per tonne.
@oreoluwaajayi21 27 күн бұрын
this was very helpful. thanks
@ishitachitkara5428 28 күн бұрын
In the report why did you fill november as the lowest rainfall month when may had the 0 lowest rainfall days AND 0 Lowest average rainfall
@Prepmatter 26 күн бұрын
That's because, in the question, the time period spans from November to May.
@pratikshakulkarni566 Ай бұрын
Great video! Studied it twice and the assessment went very smoothly 👍🏻
@SpaceXX71 Ай бұрын
Is this the Actual test?
@pratikshakulkarni566 23 күн бұрын
Yes. Just different background scenarios for Red Rock. For Ecosystem, I got the Mountain backdrop but principles remain same.
@Alis.-ij4gt 23 күн бұрын
@@pratikshakulkarni566What was the Red Rock about this time ?
@ju16436 Ай бұрын
At 23:45 why do we do 23-19/23 ? Shouldn’t we do 23-19/19 I thought the formula was final value-initial value/initial value ?
@Prepmatter 26 күн бұрын
Somebody else asked the same question, sharing below the answer of another user: no, you can calculate it like this: 23 * x% = 19 and we want to find x%, therefore: x% = 19/23, which is ~82.6%. The reduction is 1-0.826 = 0.174 AKA (1 - 19/23) = (23-19)/23 = 4/23 = ~17.4%
@ConspiracyPizza Ай бұрын
I got my offer from a T2 firm (OW/LEK/Kearney) from this video 🙏🙏🙏🙏🙏 thank you market sizing man The get the offer stuff was pretty helpful too for behaviorals
@orlevy68 Ай бұрын
Is it possible to copy and paste text in the REAL Redrock test? Can you select and copy text from the questions and paste it elsewhere, or is the screen locked down to prevent copying?
@silalahot Ай бұрын
Hey, I have a quick question on 21:37. The question is asking us to analyze BETWEEN December and April, but you include december in your analysis. I'm just a bit confused bcs I initially thought that the word 'between' means that we need to exclude December and April on our calculation (i think it'll be more suitable if the questions ask us to analyze FROM December TO April).. looking forward to your answer.. thanks
@Prepmatter 26 күн бұрын
Thanks for your question! In a business context, 'between' two time periods includes both periods. For example, if we need to analyze how a company performed between 2020 and 2023, we examine the financials of 2020, 2021, 2022, and 2023. Hope that clarifies things!
@ahmadmurad-fl2yb Ай бұрын
At 23:43, The percentage decrease should be (19-23)/19 *100 >>> (New-old)/old* 100. Please correct me if Im wrong
@yummypugs 27 күн бұрын
no, you can calculate it like this: 23 * x% = 19 and we want to find x%, therefore: x% = 19/23, which is ~82.6%. The reduction is 1-0.826 = 0.174 AKA (1 - 19/23) = (23-19)/23 = 4/23 = ~17.4%
@KevinMakhanu-ds2bf Ай бұрын
For length section, will I have an opportunity to pause then align the cursor with the face or not?
@Prepmatter Ай бұрын
You won't be able to pause, as the first face appears immediately after you start the game. However, if you position the cursor in the middle of the screen initially, you should be able to move it to the edge of the mouth right away. Remember, there are 90 faces, so even if you make a mistake on the first or second face, it shouldn't significantly impact the overall outcome.
@arifahameliatijani8632 Ай бұрын
cant say anything but thank you so much for this video! i hope you’re having a great day too!
@melisastill4742 Ай бұрын
Isn’t this hard for ADHD people 😅🥹
@cristhianmorenoregalado8188 Ай бұрын
Thank you very much for your video. I did a good test. Your explanation was tremendously helpful!
@hanniking99 Ай бұрын
Hey! One question with regards to Question 2 (Redrock Study): You have calculated the percentage change. However, the question was about the percentage POINT change. My approach: for summit depth --> (47-10)/10 = 370% for base depth --> (35-8)/8 = 337.5% Therefore, the percentage POINT difference is 370% - 337.5% = 32.5%
@Prepmatter Ай бұрын
Well spotted! To avoid confusion, we'll remove 'point' from Prepmatter's simulation.
@emmanuelj18. Ай бұрын
Hi, I could be wrong but your calculation seems to be off. Shouldn't it be A/B = C*100 = D - 100 = the answer. And not A/B = C - 100 = the answer?
@kianbazad1186 Ай бұрын
Same thing but he just didn’t multiply by a 100
@JayantKochhar Ай бұрын
Hey there, I believe the examples under top-down and bottom-up are swapped. Top-down is Generic -> specifics and, Bottom up is Specific->Generic right!!
@Prepmatter Ай бұрын
To make it easier to determine the appropriate approach, in top-down questions, demand is the bottleneck, whereas in bottom-up questions, supply is the bottleneck. In this video, we've covered the maternity clothing market in London, where demand is the bottleneck-meaning the larger the population of women in London, the larger the potential market. We treated the daily revenue of a local gym as a bottom-up question because we assume that a larger gym will attract more people, thus increasing revenues, assuming the demand exists. However, if the city’s population were to double, the gym’s revenues might not necessarily double due to potential constraints like space limitations. Having said that, in many market sizing questions, you can use both approaches to triangulate your results.
@harshdesai4906 Ай бұрын
honestly doesnt look to be a "live" case interview. Every question he asks leads to a new data ??
@Prepmatter Ай бұрын
Doga, the interviewee, is actually performing the case live. Considering he is a former BCG consultant with four years of experience, it may feel as if he's walking through a script. However, he's just a good performer :)
@stevethomas7672 Ай бұрын
Tower can be done in 7 steps
@heilongleung6851 Ай бұрын
Would you telling us how?
@AZNxLEGZ Ай бұрын
Lol - "You guys need to look at your goals again because it's a joke. BTW, we can charge you more money to help you do something about it if you think of a solution because we couldn't. You'll be seeing an invoice tomorrow for us telling you you're screwed."
@ayooluwaoguntade9163 Ай бұрын
How do you know your ecosystem works at the end of the game?
@Prepmatter Ай бұрын
In the real-life assessment, there is no live feedback. In Prepmatter's simulation, at the end of the game, you'll receive your results just as in 13:33 in our other McKinsey Solve video. Before you submit your ecosystem, we highly recommend taking enough time to review the entire food web one last time to ensure that it is sustainable both from environmental conditions and calorie perspective.
@uzomaochonogor9248 Ай бұрын
Please is there anything we need to consider before choosing any location or we can just choose randomly?
@Prepmatter Ай бұрын
You may want to briefly scan the species cards first. Often times, more than one location will have a viable solution. In case you cannot find a sustainable ecosystem in your chosen location, it is fine to start from scratch in a different location.
@Nuralinur Ай бұрын
Very useful, thanks
@pablocarranzajimenez5978 Ай бұрын
What can i do to make sure a location is going to allow me to have a sustainable ecosystem??
@Prepmatter Ай бұрын
You can always scan the species specifications first, but there is no clear shortcut. In the unlikely case where you cannot find a sustainable ecosystem, it is ok to start from scratch in a different location.
@TiredParent Ай бұрын
Timestamp 37:24 The question asks, “… if the realistic scenario is realised for all 3 activities”. If this was the case, the likelihood would be irrelevant altogether and a total of 8 + 5 + 4 = 17 species would have been saved. The question should have put the Likelihood percentages given below each graphs into context and how it relates to the animals saved.
@yomandelamaison9151 Ай бұрын
I completely agree... was scrolling through the comments hoping someone would have pointed it out.
@martinknittel 4 күн бұрын
Yes, I agree. The wording implies that we shouldn't calculate the expected value (which by the way would include the other scenario) but simply add the species saved as the likelihood is made irrelevant.
@okoliechibuike3621 Ай бұрын
I have two question please 1. Must we pick three producers 2, sea urchin needs more calories why not remove it instead of spade fish
@Prepmatter Ай бұрын
Thank you for your questions. 1. You don’t have to pick three producers. Sometimes you might start with three and remove one along the way. 2. There are multiple possible variations - we simply chose sea urchin for this example. Feel free to explore our interactive simulation to practice with different environments, including a coral reef and a mountain ridge scenario!
@s169007 Ай бұрын
How close is this simulation to the actual game? Can anyone who has taking the test recently comment on the resemblance of the simulation for the actual game?
@Prepmatter Ай бұрын
Hi! We’ve consistently received feedback that the simulation is a true reflection of the real game.
@cristhianmorenoregalado8188 Ай бұрын
I confirm that the platform is very accurate.
@mohammadmousavi1 Ай бұрын
I am very new and don’t have any idea about consultancy. I have PhD in physics and electronics engineering but want to switch to consultancy… what field if consultancy is this interview about? How can I get into consultancy job do I need MBA ?
@Prepmatter Ай бұрын
Hi Mohammad! This case interview exemplifies management/strategy consulting roles in MBB, Tier 2, and boutique consulting firms. PhD candidates are highly sought after in consulting, so you don't need an MBA to join top consulting firms. In fact, PhD graduates are considered at the same level as MBA graduates, meaning you'll be joining in a post-MBA role.
@TiredParent 2 ай бұрын
The eating order is unclear in the video: The species with the highest “Calories Provided” eats first…. The eating order is not simply sorted by organising the animals from the highest “Calories provided” to lowest at the very start of the task. When an animal (or producer) is consumed by another animal, the remaining amount of calories left on that Animal may change the “eating order” as the reduction changes "calories provided" of the respective animal. So in this example, if you determine the eating order right at the start by looking at the "Calories provided", you would get: (1) - Great White Shark, (2) - Blue Jellyfish, (3) - Sea Urchin, (4) - Shrimp, (5) - Loggerhead Sea Turtle, and producers do not eat. However, if do the calculations and shuffle the eating order as you go, you will end up getting the following eating order: (1) - Great White Shark, (2) - Blue Jellyfish, (3) - Loggerhead Sea Turtle, (4) - Shrimp, (5) - Sea Urchin, and producer do not eat. So the eating order changes progressively in the process.... This is not clear in the video.
@Prepmatter Ай бұрын
Thank you for your comment. Indeed, it is important to keep the eating order rules in mind when building the ecosystem.
@astriddymling6917 Ай бұрын
Good point but I think you are mistaken in the eating order. Considering the current calories provided as you go, the loggerhead sea turtle should eat last considering after it's been eaten by the shark has the least amount of calories provided (150). Or am I missing something?
@TiredParent Ай бұрын
@@astriddymling6917 No, you are not missing anything. After I left the comment here, I went back to my xls and noticed the eating order mistake I made in the comments. I carried on with my prep so forgot to go back and edit it. The eating order is as follows: (1) - Great White Shark, (2) - Blue Jellyfish, (3) - Shrimp, (4) - Sea Urchin, (5) - Loggerhead Sea Turtle, and producer do not eat.
@TiredParent 2 ай бұрын
Minor correction: Timestamp 8:52 Shrimp also consumes Red Moss. Not in the graphic drawn with the arrows.
@Prepmatter Ай бұрын
Thanks for pointing this out. Indeed, shrimp also consumes red moss. As I was drawing the ecosystem, I forgot to draw the arrow from shrimp to red moss. Yet, I've factored this into our calculations.
@TiredParent 2 ай бұрын
There is some confusion in the Eating Rules under guidance. Timestamp 3:00 I would recommend the following changes in the wording: Para 1: The species with the highest “Calories Provided” eats first…. The animal eats its “Food Source” with the highest “Calories Provided” in the first instance… providing that the “Calories provided” of the prey satisfies the “Calories needed” of the respected Animal. If the Animal is feeding on multiple sources of food, AND they ALL provide equal amount of calories (e.g. Sea Lettuce providing 3000 cal. and Red Moss providing 3000 cal.), then the Animal will eat both prey equally… e.g. 1,500 cal. from each. Para 3: Then the species with the next highest “Calories Provided” eats in the Ecosystem…. If there is a tie between “Calories Provided” for the Animals (e.g. Sea Urchin providing 2,100 cal. and Spadefish providing 2,100 cal.), then no Animal will take priority as the “primary eater” and will therefore split their food source equally. E.g. Sea Urchin and Spadefish both eat Sea Fan, they would fulfil their calorie need by utilising 50% of the prey’s “Calories Provided”. This information is given at Timestamp 9:46 but not included in the Eating Rules under guidelines, or at least clear enough.
@Prepmatter Ай бұрын
Thank you for your comment. The guidebook of our online simulation reflects of the real assessment.
@andreeaa3564 2 ай бұрын
Love Ayse’s energy! 😍
@manoharbishnoi2711 2 ай бұрын
Thank you Hare Krishna ❤