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How do you calculate the market size of the Food Delivery Service industry?

Case Interview Guesstimate Market sizing
Recent activity on Apr 11, 2023
Anonymous gave the best answer on Apr 25, 2019
Hi Wibi, We are happy to provide you feedback on your solutions. Would you want to try your best solution first? Happy to improve it together. Best Serhat
6
Answers
21.6 k
Views
23
Total Upvotes
on Apr 11, 2023 on Apr 11, 2023
Last Activity

How much hand sanitiser was used yesterday in X country?

Guesstimate
Most recent answer on May 20, 2022
The best answer (on May 17, 2022) is from:
Ian
Expert
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Ian
Expert
gave the best answer on May 17, 2022
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Hi there, You'll get the best out of this exercise if you try it yourself and post here for feedback. How to think about Market Sizing It's very simple: Do the approach the is the easiest for you given the question. Are ... (read entire answer)
4
Answers
899
Views
31
Total Upvotes
on May 20, 2022 on May 20, 2022
Last Activity

Guesstimate - How many workers did it took to build the pyramids?

case guesstimation guess-estimates Guesstimate issue tree
Most recent answer on Mar 16, 2022
The best answer (on Mar 15, 2022) is from:
Moritz
Expert
ex-McKinsey EM & Interviewer | 7/8 offer rate for 4+ sessions | 90min sessions with FREE exercises & videos
Moritz
Expert
gave the best answer on Mar 15, 2022
ex-McKinsey EM & Interviewer | 7/8 offer rate for 4+ sessions | 90min sessions with FREE exercises & videos
Hi there, Can't believe this actually came up in a real interview! The most comprehensive answer would have to consider the fatality rate of slaves ('workers' is a bit of a euphemism), which is a weird thing to talk abo ... (read entire answer)
2
Answers
891
Views
21
Total Upvotes
on Mar 16, 2022 on Mar 16, 2022
Last Activity

How many cell towers in Country X

Guesstimate Market sizing tmt
Most recent answer on Feb 12, 2022
The best answer (on Feb 11, 2022) is from:
Charlotte
Expert
Empathic coach, former McKinsey Engagement Manager |Secure offers from top consulting firms
Charlotte
Expert
gave the best answer on Feb 11, 2022
Empathic coach, former McKinsey Engagement Manager |Secure offers from top consulting firms
Great ideas. For market sizing questions start with understanding what are the drivers behind the demand of the quantity you are estimating are. Then test these with the interviewer and structure your approach based on ... (read entire answer)
3
Answers
1.4 k
Views
38
Total Upvotes
on Feb 12, 2022 on Feb 12, 2022
Last Activity

Guesstimate - How many polar bears are there in the world?

guess-estimates Guesstimate market size
Most recent answer on Feb 11, 2022
The best answer (on Feb 09, 2022) is from:
Charlotte
Expert
Empathic coach, former McKinsey Engagement Manager |Secure offers from top consulting firms
Charlotte
Expert
gave the best answer on Feb 09, 2022
Empathic coach, former McKinsey Engagement Manager |Secure offers from top consulting firms
There are many ways to solve this problem, I give one here but it really depends on where the interviewer is going with this case, one way is  1) Restate the case and ask a few pointed questions to give you more data an ... (read entire answer)
4
Answers
996
Views
82
Total Upvotes
on Feb 11, 2022 on Feb 11, 2022
Last Activity

How much paint need for....?

guess-estimates Guesstimate
Question edited on Feb 05, 2022
The best answer (on Feb 01, 2022) is from:
Nicolas
Expert
40% off 1st coaching Promo | #1 MBB Coach Canada & MENA | 8y+ Coaching & recruiting | BCG + Senior Exec | INSEAD MBA
Nicolas
Expert
gave the best answer on Feb 01, 2022
40% off 1st coaching Promo | #1 MBB Coach Canada & MENA | 8y+ Coaching & recruiting | BCG + Senior Exec | INSEAD MBA
Hello, I think your approach is fair as you cover the most important steps in these kinds of market sizing: 1. Start with Top-Down and slice the “market” into segments → Narrow down on the one you are interested in 2. F ... (read entire answer)
3
Answers
1.2 k
Views
29
Total Upvotes
on Feb 05, 2022 on Feb 05, 2022
Last Activity

Market sizing: number of customers to an H&M store / day

Guesstimate Market sizing
Most recent answer on Dec 31, 2021
The best answer (on Feb 28, 2020) is from:
Luca
Expert
BCG |NASA | SDA Bocconi & Cattolica partner | GMAT expert 780/800 score | 200+ students coached
Luca
Expert
gave the best answer on Feb 28, 2020
BCG |NASA | SDA Bocconi & Cattolica partner | GMAT expert 780/800 score | 200+ students coached
Hello, All of your points make sense and those are all questions that you can ask your interviewer at the beginning of the case. Before starting your case, you have to clarify all the boundaries and to agree on some a ... (read entire answer)
6
Answers
3.2 k
Views
5
Total Upvotes
on Dec 31, 2021 on Dec 31, 2021
Last Activity

Market sizing: # of white men's t-shirts sold in a year

Guesstimate Market sizing
Most recent answer on Dec 31, 2021
The best answer (on Mar 02, 2020) is from:
Luca
Expert
BCG |NASA | SDA Bocconi & Cattolica partner | GMAT expert 780/800 score | 200+ students coached
Luca
Expert
gave the best answer on Mar 02, 2020
BCG |NASA | SDA Bocconi & Cattolica partner | GMAT expert 780/800 score | 200+ students coached
Hello Viktoria! I would approach the problem as following: Estimate number of t-shirt per man Estimate percentage of white t-shirt Estimate the "expected life" of a shirt from Zara Number of white t-shirt so ... (read entire answer)
5
Answers
3.9 k
Views
2
Total Upvotes
on Dec 31, 2021 on Dec 31, 2021
Last Activity

Market Sizing - Guess the number of rats sold in the US?

Guessestimation Guesstimate Market sizing
Most recent answer on Dec 31, 2021
The best answer (on Oct 18, 2018) is from:
Dennis
Dennis gave the best answer on Oct 18, 2018
This seems like an interesting one as you could actually make the discussion quite extensive. So this is how I would go about it (if this does not make sense I'd gladly be corrected): At the moment I can see four diff ... (read entire answer)
3
Answers
2.7 k
Views
9
Total Upvotes
on Dec 31, 2021 on Dec 31, 2021
Last Activity

Guesstimate Problem asked during a MBB Interview

Analytical BCG Case Interview Boston Consulting Group case math Guesstimate MBB Interview Mckinsey interview
Most recent answer on Nov 07, 2021
The best answer (on Nov 07, 2021) is from:
Ian
Expert
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Ian
Expert
gave the best answer on Nov 07, 2021
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Hi there, You'll learn a lot more from this by trying it out yourself first! Why don't you post your approach here and we can provide commentary? How to approach market sizing It's very simple: Do the approach the is th ... (read entire answer)
4
Answers
880
Views
28
Total Upvotes
on Nov 07, 2021 on Nov 07, 2021
Last Activity

What's the size of the PS5 market?

Guessestimation Guesstimate
Most recent answer on May 16, 2021
The best answer (on Nov 13, 2020) is from:
Ian
Expert
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Ian
Expert
gave the best answer on Nov 13, 2020
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Hi there, Totally wrong approach! (Sorry) What's the point of estimating users of PS3/4? You're going a very veyr indirect route (unless you happen to already know this number) For this case, I would break down wo ... (read entire answer)
5
Answers
2.4 k
Views
28
Total Upvotes
on May 16, 2021 on May 16, 2021
Last Activity

Estimate how many hospital beds for pregnant women are necessary in a year in the US

brainteaser Guesstimate Market sizing
Most recent answer on May 16, 2021
The best answer (on Apr 26, 2021) is from:
Ian
Expert
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Ian
Expert
gave the best answer on Apr 26, 2021
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Hi there, You'll really get the best out of this exercise if you try it yourself. Why don't you post what you're thinking and we can help? Hint: Do you think this makes more sense top-down or bottom up? Gene ... (read entire answer)
3
Answers
2.1 k
Views
31
Total Upvotes
on May 16, 2021 on May 16, 2021
Last Activity

How many business are in the US?

Guesstimate Market sizing
Most recent answer on Mar 24, 2021
Anonymous A asked on Mar 23, 2021
Hello How would you start with: how many business are in the US?
3
Answers
922
Views
0
Total Upvotes
on Mar 24, 2021 on Mar 24, 2021
Last Activity

How much restaurants are in Paris?

Guesstimate Market sizing
Most recent answer on Mar 24, 2021
The best answer (on Mar 22, 2021) is from:
Ian
Expert
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Ian
Expert
gave the best answer on Mar 22, 2021
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Hi there, I presume you mean "How MANY restaurants?" This is a classic market sizing :) Top Down Population of Paris Breakdown by Age and/or Income Segments Estimate frequency of lunch/dinner outings per w ... (read entire answer)
3
Answers
1.6 k
Views
36
Total Upvotes
on Mar 24, 2021 on Mar 24, 2021
Last Activity

When to take into consideration growth rate for market sizing

Guesstimate Market sizing
Most recent answer on Mar 16, 2021
The best answer (on Mar 16, 2021) is from:
Ian
Expert
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Ian
Expert
gave the best answer on Mar 16, 2021
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Hi there, Great Q - you need to take it into account if we're market sizing outside of one year. That's why it's important to ask clarifying questions before jumping into the market sizing. Figure out if it's an ann ... (read entire answer)
2
Answers
839
Views
22
Total Upvotes
on Mar 16, 2021 on Mar 16, 2021
Last Activity

How to solve these market sizing quantitative question?

estimation Guesstimate Market sizing quantitative analysis
Most recent answer on Mar 15, 2021
The best answer (on Mar 14, 2021) is from:
Raj
Expert
FREE 15MIN CONSULTATION | #1 Strategy& / OW coach | >70 5* reviews |90% offers ⇨ prep-success.super.site | MENA, DE, UK
Raj
Expert
gave the best answer on Mar 14, 2021
FREE 15MIN CONSULTATION | #1 Strategy& / OW coach | >70 5* reviews |90% offers ⇨ prep-success.super.site | MENA, DE, UK
There are many similar questions with useful answers on preplounge already, like below: https://www.preplounge.com/en/consulting-forum/how-would-you-go-about-calculating-how-many-solar-panels-are-used-in-a-country-9 ... (read entire answer)
7
Answers
1.4 k
Views
84
Total Upvotes
on Mar 15, 2021 on Mar 15, 2021
Last Activity

Give an estimation of how many Logan cars are in Cluj. Please motivate your answer.

cars Guesstimate
Most recent answer on Feb 15, 2021
The best answer (on Feb 15, 2021) is from:
Gaurav
Expert
Ex-Mckinsey|Certified Career Coach |Placed 500+ candidates at MBB & other consultancies
Gaurav
Expert
gave the best answer on Feb 15, 2021
Ex-Mckinsey|Certified Career Coach |Placed 500+ candidates at MBB & other consultancies
Hi there, 1) why don't you post your approach here and we comment on it? 2) Search for Guesstimate​ questions on Preplounge to see the framework and other examples. Hope it helps! GB
3
Answers
804
Views
15
Total Upvotes
on Feb 15, 2021 on Feb 15, 2021
Last Activity

"At any given moment" - How to get there?

Guessestimation Guesstimate
Most recent answer on Nov 13, 2020
Anonymous A gave the best answer on Nov 12, 2020
Those questions are nothing more than standard market sizing questions. The reasoning that you need to use is similar to the one you'll use to estimate a market size. For example to determine how many new-yorkers are w ... (read entire answer)
3
Answers
1.0 k
Views
46
Total Upvotes
on Nov 13, 2020 on Nov 13, 2020
Last Activity

How to estimate the number of Taxis outside Delhi Airport ?

Airport taxi delhi airport Guesstimate MBB
Most recent answer on Nov 12, 2020
The best answer (on Nov 11, 2020) is from:
Ian
Expert
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Ian
Expert
gave the best answer on Nov 11, 2020
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
First: You MUST clarify if it's at a certain time of day/night. i.e. noon, midnight, etc. Is this at any given point in time? Top-Down Population of Delhi/Surrounding areas residents...subset of which would be fly ... (read entire answer)
2
Answers
2.4 k
Views
14
Total Upvotes
on Nov 12, 2020 on Nov 12, 2020
Last Activity

How many second hand wedding dresses are sold in the UK each year?

Case Interview Guesstimate Market sizing
Most recent answer on Jun 29, 2020
The best answer (on Feb 20, 2020) is from:
Daniel
Expert
McKinsey / ex-Interviewer at McKinsey / I will coach you to rock those interviews
Daniel
Expert
gave the best answer on Feb 20, 2020
McKinsey / ex-Interviewer at McKinsey / I will coach you to rock those interviews
UK population (= 60 Mio) # of women (~50% = 30 Mio) those in the marriable age (age group 20-60, i.e. 50% of all women if 80 y.o. is assumed as life expectancy = 15 mio) Out of those women % getting married whil ... (read entire answer)
7
Answers
3.6 k
Views
16
Total Upvotes
on Jun 29, 2020 on Jun 29, 2020
Last Activity
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