How To Crush Consulting Case Math (most commonly tested things)

No video

How To Crush Consulting Case Math (most commonly tested things)

Рет қаралды 19,569

Күн бұрын

Are you after a 6 figure management consulting offer? The place where most candidates fall apart in consulting case interviews is the math question. Let's work through a typical math problem together to prove that you have what it takes. I am a former McKinsey consultant and interviewer. I have interviewed more than 500 candidates from top business schools. In this video, we will practice a typical case math problem and I will leave you with my top tips for acing the math question.
📝 CASE PREP WITH ME
Send me a note if you are interested in 1:1 case prep with me remona@masterthetoolkit.com
📝 PRACTICE CASES WITH CASEY BOT
caseyinterview.com/?wpam_id=2...
📩 DOWNLOAD MY FAVORITE SLIDE TEMPLATES
master-the-toolkit.ck.page/6b...
📩 DOWNLOAD MY FAVORITE SLIDE-MAKING SHORTCUTS (PC|Mac|PowerPoint|Slides)
master-the-toolkit.ck.page/51...
🍿WATCH NEXT:
How to pass your McKinsey case interview (TOP 10 TIPS) • How to pass your McKin...
How to Ace Your Consulting Interview in One Week • How to Ace Your Consul...
⏰TIMESTAMPS⏰
0:00 Introduction
1:28 Question
2:31 Solution
6:45 Answer
6:55 Top tips
📽 LEVEL UP YOUR KZfaq CHANNEL
Part-Time KZfaqr Accelerator - academy.aliabdaal.com/a/21475...
Part-Time KZfaqr Academy - academy.aliabdaal.com/a/21475...

Пікірлер: 59

@andriipopadiuk2316 Жыл бұрын

thanks for sharing! great advise and use of fractions

@RemonaMoodley Жыл бұрын

Fractions seriously saved me in the math!

@PlastikFeeling Жыл бұрын

Hello Remona, thank you for this exercise that was very informative! Keep up the good work :)

@RemonaMoodley Жыл бұрын

Thank you 😊 Did you crack it?

@Kokokittylove 7 ай бұрын

Thanks for the walk through Remona!

@RemonaMoodley 7 ай бұрын

You’re welcome! ☺️

@novamputra4120 8 ай бұрын

very helpful!

@HowardLinca Жыл бұрын

keep up with the job!! awesome video!

@RemonaMoodley Жыл бұрын

Thanks friend

@sv.laxmipatiraju34 Жыл бұрын

I used this successive profit / loss method 66(profit)+ x + 66x/100= 25(profit) 1.66x= -0.41 X= ~25%( loss, which the value is decreased by 25%)

@RoniCleveland1122 Жыл бұрын

Very helpful thank you ❤

@RemonaMoodley Жыл бұрын

Glad it was helpful ❤️

@kurtrinnert6494 Жыл бұрын

Since the question didn't ask for p0 the absolute numbers (2.5 B and 500 M) are a red herring. We can just set p0=1 and p5 = (5/4) / (5/3) = 3/4. The change then is 1 - 3/4 = 25%.

@chixenlegjo Жыл бұрын

Exactly my thought. It was way overcomplicated in the video.

@RemonaMoodley Жыл бұрын

This works! Do what you need to do to get the right answer. Luckily there are many ways to get to the same answer. The most important thing is to explain your logic to your interviewer as you go.

@damionm121 Жыл бұрын

Can you please help me understand where the( 5/4) / (5/3) came from? Thanks

@kurtrinnert6494 Жыл бұрын

@@damionm121 revenue increase of 25% -> 125% = 5/4 now, units increase 66% -> 166% = 5/3 now, price = revenue / units (strictly 66% is not exactly 2/3, but it's good enough in this context). Note that the number 5 in the numerators has nothing to do with the "over five years" phrasing of the question, it's pure coincidence.

@RemonaMoodley Жыл бұрын

Although this approach works, it is mathematical vs business based. It’s basically saying change in price = change in revenue/ change in quantity. Change in revenue = 2.5B/2B= 5/4. Change in quantity = 500M/300M = 5/3

@rjjharahul00318 Жыл бұрын

I got it correct in my first attempt..cheers🎉

@RemonaMoodley Жыл бұрын

Whohoo! Congratulations 🎉

@sparshlal9436 7 ай бұрын

but didnt the question asked for average price decline .. so shouldnt 25% be divided by 5

@Sachin-ww1ns 7 ай бұрын

Hey Remona, Do the MBB also hire candidates who have a (master's in Data Science + CFA charter)from a Good German Uni or are they strictly MBA graduates? Case math was pretty easy I got an accuracy of -24.7% coz I considered all the decimals.

@RemonaMoodley 7 ай бұрын

Great work on the math, Sachin. They consider non-MBAs too.

@mikewazovski848 7 ай бұрын

Why we could not just multiply 2.5B to 0.25 = , and the result reduct it to 2.5B - 0.625B = 1.875B, so the first year is 1.875B and fifth year is 2.5B, meaning that it increased to 25 percent, please explain someone?

@yingying-tz5zk 3 ай бұрын

Hi, sorry if I ask silly question. It will be great if you can help me out, why we calculate the average percentage price decline over past 5 years, we need to ($6.66-$5)/ $6.66? I wonder why we divide by $6.66 ? Thanks in advance!

@RemonaMoodley 3 ай бұрын

Hey Ying. The formula is (new-old)/old for percentage change. ❤️

@rajatramteke5234 Жыл бұрын

Hello, the question you asked is to find the AVERAGE PERCENTAGE PRICE DECLINE OVER PAST FIVE YEARS, and that would be 5%. Please correct me if I am wrong. Thank you

@RemonaMoodley Жыл бұрын

It’s just the point to point decline over the 5 year period, not the price decline per year over 5 years. The latter would be a more difficult calculation, more difficult than what is usually tested in cases.

@chioma2743 7 ай бұрын

ur content is so helpful! please how did you get ‘1.25’ from the percentage increase. if you don’t mind, what’s the rationale for adding 1 to it? thanks 🙏🏽

@RemonaMoodley 7 ай бұрын

Thank you Chioma. The rule of thumb for % increase is x by 1+% and for % decrease is to divide by 1+%. You can derive the rule of thumb through first principles. If you want to increase x by y% then the increased number = x + xy. Factorizing this would simplify to x(1+y).

@chioma2743 7 ай бұрын

oh, I understand! thanks a bunch for your help. I'll just practice now :) @@RemonaMoodley

@funmitej Жыл бұрын

Hello, can you please explain where you got the 1.25 from? Why isn’t it .25 in this case? Same with 1.66, why not .66? Just trying to follow along with your solution. Thank you!

@RemonaMoodley 11 ай бұрын

As a rule of thumb, when you want to increase a number by x% you multiply it by 1+x%. To decrease a number by x% you divide by 1+x%. You can prove the rule of thumb to yourself using algebra starting from this equation-> Final value =initial value + (initial value x percentage change)

@funmitej 11 ай бұрын

@@RemonaMoodley super helpful to know, thank you so much!

@FinancialFortuneFablesYT991 7 ай бұрын

Do you have any case interview course? I want to got an offer from MBB

@RemonaMoodley 7 ай бұрын

I’m planning group workshops so sign up to hear about them here master-the-toolkit.ck.page/e34c228ae8

@danieleromonsele 8 ай бұрын

I got it in my head 😄😄😄

@RemonaMoodley 7 ай бұрын

Awesome! Still practice saying it out loud to someone.

@danieleromonsele 7 ай бұрын

@@RemonaMoodley okay 👍🏼👍🏼

@chixenlegjo Жыл бұрын

Shouldn’t the answer just be 1-125/166=41/166, or approximately 25%? The given solution felt overcomplicated. Revenue is the product of price and volume, so price is revenue over volume, then price decline is one minus that. The new revenue is 125% of what it was, and the new volume is 166% of what it was. One minus revenue over volume is price, or 1-125/166=41/166.

@RemonaMoodley Жыл бұрын

Works! As long as you are comfortable explaining your logic to your interviewer. Math is fun. There are many ways to get to the same answer and what’s easy to some is complicated to others. 😜

@sudeepbera4715 10 ай бұрын

Well the assumption that the annual revenue comes solely from sale of units is not clearly defined in question. I guess that is one of the pre assumption that the interviewer wants us to assume.

@RemonaMoodley 10 ай бұрын

Good catch. You can ask your interviewer to clarify before calculating the answer.

@neocla 4 ай бұрын

Thanks for the case. I think the music is unnecessary for this purpose especially when reading the question

@RemonaMoodley 4 ай бұрын

Ah! Thanks for feedback! I really appreciate it. I’m planning another series on a full case and won’t put the music in.

@mhdaflah5143 Жыл бұрын

I got 24% But my method is fully different

@RemonaMoodley Жыл бұрын

Great job!!! Can you share your method?

@RonitGhosh 8 ай бұрын

you don't even need the units sold this year to solve this

@RemonaMoodley 8 ай бұрын

Say more…

@AkshayKumar-ho1pb Жыл бұрын

Can u please make a video on how to pass the interview for the Executive assistant role on Mackenzie. preparation tips, online assessment preparations etc.. Including the whole process. It will help many students like me who graduated from ordinary colleges to get succed in MNC Hope you reply👍

@RemonaMoodley Жыл бұрын

Great suggestion Akshay! I’ll try my best :)

@AkshayKumar-ho1pb Жыл бұрын

@@RemonaMoodleyThank you mam🤝 hope u make it faster🙂bcz i have an online assessment to clear as the first step for the executive assistant role before this upcoming monday on Mackenzie🥲 i know you are busy in your works i understand. but can u share me ur email id pls🙏 i want some guidances & tips from experts like you to crack the job. I failed to clear online assessment for BPS role on Mackenzie last month so this chance is most precious for me 😢otherwise make an video about it as soon as you can it's an request 🙏 Hope u understands 🙂🤝

@HarryJoiner 8 ай бұрын

You’re assuming the company has 500 million customers and no repeat business. These are not assumptions I would make. If this were a DTC ecommerce business, you’d never make any money with a five dollar average order value.

@danieleromonsele 8 ай бұрын

It's not that deep bruv. It's just fir calculation