Product Manager Estimation Interview Questions

Kartikeya N. - "Clarifying questions What do we mean by bookings? Is it nights booked or transactions?: Nights booked Are there any constraints like platform or anything else while calculating the nights booked? : No If a user books a night but does not show up, do we still count him? : Yes If a user cancels before turning up, do we not count him? : Yes Expedia operates globally. Its major markets are Europe, USA, Asia, Africa etc. We will take the following high level approach **Total population →"See full answer

Valentin B. - "Let me first ask some clarification questions / make assumptions: Any specific geographic region? => USA How do we measure bandwith? a. Bandwith is the maximum internet speed required for our google maps servers to support all google maps traffic in the USA. At which point do we measure bandwith? => at the “entrance” of each google server center Do we talk about maximum bandwith required? a. Yes, the maximum BB required to support google maps in the USA (on side of Google) Outline: O"See full answer

R K. - "Clarifying questions: Can we pick any business product across CapOne spectrum? any preference? - Assume pick any Are there any specific geographies you'd like to focus on? Are there any specific customer segments you'd like to focus on? Are you able to provide any information on the market/competitive analysis? Or I can just make reasonable assumptions along the way. Confirming we care about revenue? not profit per customer? Lay out the framework: I'd like to focus on the followi"See full answer

P K. - "Note: Modifying the question to reflect the storage cost as well. Question: Estimate the cost of storing google photos on the photos app? Clarifying questions: Google photos - an app that syncs automatically to your camera app and uploads photos to Google cloud and reduces the need to store it on your device Cost of 1GB storage $0.002 Time storage cost per year Equation: Cost of storage per year = average cost of storing photos per day x 30 days x 12 months The ave"See full answer

Shreejal L. - "Clarifying questions: Should I include the tail of the helicopter when computing the area for this question? Can I assume that the average ping pong ball has a radius of around 1 inch? Assumption: Assume that the helicopter is more circular than a rectangle. Hence use the formula of a circle in computing the area. Assume that the helicopter's radius is 5 feet a 6 feet person can't stand on the helicopter because they're tall for it hence rounding down. Assume that th"See full answer

Kartikeya N. - "Clarifying questions By mutual follows, we mean that both of them follow each other on Tiktok, correct? : Yes We want to know an average number for the same, ie mean and not median or any other value, right? : Yes Shall we consider the global audience or that of a particular country? : Global Can we assume the time setting of this question as of 2025?: yes Here’s how I will tackle this question. > We will first estimate the total number of Tiktok users. Then we will try to"See full answer

Anonymous Porcupine - "Scope Clarification with Interviewer: Is it a standard civil 4-seater helicopter or a Military cargo carrier? Do we wish to calculate the balls in the passenger compartment only or do I consider the gas tank and other spaces in a helicopter? 3.Is the helicopter loaded with seats and passengers or do I assume that there are no seats and passengers/ pilot? Assumptions: The interviewer asked me to make assumptions. Its a standard 4-seater helicopter It is empty but has the standard seat"See full answer

Cameron P. - "Estimate the market size for Google Fi Market size -> total revenue/sales in a market = market share Google Fi -> telecommunication services by google. Only for US market Market size = (1)google fi customers / (2)total customers in the market (2)total customers in the market 300m ppl in the US 0-90 life expectancy Factor out 0-12,80-90 240m ~250m ppl in the US who are using phones and need a telecommunication service (1)google fi customers Version 40% - 110m AT&T 30% - 70m T-Mobil"See full answer

Kartikeya N. - "Clarifying questions We are referring to Facebook here within Meta products, correct?: Yes Can we base the CAC as of 2025?: yes Facebook acquires users through multiple channels, are we focussed on any particular channel? : We are looking at an overall CAC for Facebook What all do we want to include in CAC? Can we limit it to the marketing and advertising costs and leave aside technical, infrastructure or people costs?: yes Here’s how I will calculate this. **Customer acquisition c"See full answer

Chelsea F. - "Questions: Clarify: High school = grades 9-12? So roughly ages 15-18 (4 years)? Are we talking about all high-school aged kids, or kids who actually attend HS? Do we count home schoolers? Drop outs? Assumptions: Let's assume we're estimating the number of children in the U.S. who are enrolled in/attend HS Assuming a uniform distribution of the population across ages Approach: U.S. Population = 300m Average lifespan = 80 years 4 years represented by HS age = 5% of the populati"See full answer

onering2ruleall - "Total volume of the swimming pool, let's say it's a standard 50m x 25 m x 2m =2500 m3 = 2.5 million litter standard water horse water flow rate is 17 liter per min. So, 2.5 m / 17 =147,059 min"See full answer

Anonymous Muskox - "Clarification Questions I am assuming we need to deliver the packages to the doorstep. I am assuming we need to deliver all the packages which are ordered in a single day. For more product interview experience, please visit TechnoManagers https://technomanagers101.blogspot.com/ High level formula Number of Drones required = (US Population 330M)(Excluding 30% those below 10 years and above 65 years)(internet penetration 90%)([ (10% high networth people)(30 orders per year) ] + ["See full answer

Anna H. - "Clarifying questions: How can we define a transaction? incoming /outcoming funds? A successful outcoming transaction as a wire transfer and requested by the payer or account holder. New users/ existing users? both Which platform for transaction requests? mobile/ desktop? both Are transactions direct from payer to beneficiary through a third-party such as banking/ financial services? yes Are there any bounds to time/resource constraint for transactions? E.g. internal, domestic or in"See full answer

Anubhav A. - "Clarifying question: We are just interested in facebook's ad rev and not other meta products We are looking at the rev coming per year globally formula = (avg. ads shown per min on fb products) x (avg. time spent per user per day in mins) x (avg. rev that fb makes per view) x (DAU) x 365 assumption all kind of ads give the same rev per view to fb all kind of geographies give the same rev per view to fb avg. ads shown per min -> user can scroll upto 20 posts easily in a min, lets"See full answer

Sai ganapathy S. - "Estimate the number of Slack Users. Are we going to calculate the number of Slack users only in the US or throughout the world ? Slack users within the US By Slack users, are we going to consider only personal account users or enterprise account owners as well ? Both. Enterprise and Personal Account. Assuming that there are around 330 Million individuals in the US, splitting them into various age groups. 0-20, 2-40, 40-60 - 80 Million each Above 80 = 80 Million Since"See full answer

Anonymous Tiger - "Clarify question and state assumptions: Streetview from my understanding is compiled by a streetview car going out and taking multiple photos and then Google stitches this together to give us streetview. I'm only going to look at the streetview outdoor experience, I know for e.g Google also has full views of some businesses, malls, museums etc so for the purposes of this I'm not going to calculate this. For the purposes of this is it OK if we say how much storage required to store streetview"See full answer

Anubhav A. - "Lets see, what kind of cost does google have to incur to run google photos. To think about this clearly, I want to think as if I was going to setup Google Photos now and it doesn't exist till today. Cost for Building software and maintaining it Cost for acquiring users Cost for keeping the data of users safe and accessible Miscellaneous Now lets come back to today where Google photos clearly exist and I will think about the costing in each of these sections. Google photos s"See full answer

Veronica S. - " CQ: 1. Understanding of Google search and the way ads are being displayed today. What kind of subscription model are we thinking of: same as youtube I talked about Google search as a flagship product of google. % of revenue generated from ads. Other search engines and there % share in the market. Other players such as Facebook whose 99% revenue is from ads. Talked about Google Mission and alignment of the ads with Google mission Pro Con list of subscription versus ads User exp. 2."See full answer