"This is a Fermi problem — an estimation or approximation problem with limited information and back-of-the-envelope calculations. There's no right answer: interviewers want to understand how you think and how well you can explain your reasoning, rather than what you already know.
Recall the formula for Fermi problems:
Ask clarifying questions
Catalog what you know
Make equation(s)
Think about edge cases to add to equation
**Breakdown components of your equat"
Exponent - "This is a Fermi problem — an estimation or approximation problem with limited information and back-of-the-envelope calculations. There's no right answer: interviewers want to understand how you think and how well you can explain your reasoning, rather than what you already know.
Recall the formula for Fermi problems:
Ask clarifying questions
Catalog what you know
Make equation(s)
Think about edge cases to add to equation
**Breakdown components of your equat"See full answer
"This is a Design a Product question. For this, we'll want to follow the formula for success:
Ask clarifying questions
Identify user types, behaviors, and pain points
State the goal and use cases
List current solutions
Improvements / net new solutions
Evaluate and select solutions
Measure Success
Summarize
Ask clarifying questions
It's important to get clarity on anything unclear. Asking questions also helps us limit scope early on s"
Exponent - "This is a Design a Product question. For this, we'll want to follow the formula for success:
Ask clarifying questions
Identify user types, behaviors, and pain points
State the goal and use cases
List current solutions
Improvements / net new solutions
Evaluate and select solutions
Measure Success
Summarize
Ask clarifying questions
It's important to get clarity on anything unclear. Asking questions also helps us limit scope early on s"See full answer
"This is a Fermi problem — an estimation or approximation problem with limited information and back-of-the-envelope calculations. There's no right answer: interviewers want to understand how you think and how well you can explain your reasoning, rather than what you already know.
Recall the formula for Fermi problems:
Ask clarifying questions
Catalog what you know
Make equation(s)
Think about edge cases to add to equation
**Breakdown components of your equat"
Exponent - "This is a Fermi problem — an estimation or approximation problem with limited information and back-of-the-envelope calculations. There's no right answer: interviewers want to understand how you think and how well you can explain your reasoning, rather than what you already know.
Recall the formula for Fermi problems:
Ask clarifying questions
Catalog what you know
Make equation(s)
Think about edge cases to add to equation
**Breakdown components of your equat"See full answer
"This is a Fermi problem — an estimation or approximation problem with limited information and back-of-the-envelope calculations. There's no right answer: interviewers want to understand how you think and how well you can explain your reasoning, rather than what you already know.
Recall the formula for Fermi problems:
Ask clarifying questions
Catalog what you know
Make equation(s)
Think about edge cases to add to equation
**Breakdown components of your equat"
Exponent - "This is a Fermi problem — an estimation or approximation problem with limited information and back-of-the-envelope calculations. There's no right answer: interviewers want to understand how you think and how well you can explain your reasoning, rather than what you already know.
Recall the formula for Fermi problems:
Ask clarifying questions
Catalog what you know
Make equation(s)
Think about edge cases to add to equation
**Breakdown components of your equat"See full answer
"This is a Technical question. It tests your ability to understand high level technical concepts. Even though your job won't have any coding involved, you'll still need to understand these concepts. Being able to cover all these topics with clarity communicates confidence in your interviewer.
Unfortunately, there's no formula for technical questions, but some general tips are:
Use analogies when you can
Break your solution into clear, bite-size steps
Don't be afraid to use examples to b"
Exponent - "This is a Technical question. It tests your ability to understand high level technical concepts. Even though your job won't have any coding involved, you'll still need to understand these concepts. Being able to cover all these topics with clarity communicates confidence in your interviewer.
Unfortunately, there's no formula for technical questions, but some general tips are:
Use analogies when you can
Break your solution into clear, bite-size steps
Don't be afraid to use examples to b"See full answer
Product Manager
Technical
🧠 Want an expert answer to a question? Saving questions lets us know what content to make next.
"This is an Improve a Product question. Let's first go over the Improve a Product formula:
Ask clarifying questions
Identify users, behaviors, and pain points
State product goal
Brainstorm small improvements
Brainstorm bolder improvements
Measure success
Summarize
Now, let's begin!
Ask clarifying questions
Before we begin listing off recommendations, it's important you ask questions to ensure you and the interviewer are on the same page"
Exponent - "This is an Improve a Product question. Let's first go over the Improve a Product formula:
Ask clarifying questions
Identify users, behaviors, and pain points
State product goal
Brainstorm small improvements
Brainstorm bolder improvements
Measure success
Summarize
Now, let's begin!
Ask clarifying questions
Before we begin listing off recommendations, it's important you ask questions to ensure you and the interviewer are on the same page"See full answer
"This is another Fermi problem — an estimation or approximation problem with limited information and back-of-the-envelope calculations. There's no right answer: interviewers want to understand how you think and how well you can explain your reasoning, rather than what you already know.
Recall the formula for Fermi problems:
Ask clarifying questions
Catalog what you know
Make equation(s)
Think about edge cases to add to equation
**Breakdown components of your"
Exponent - "This is another Fermi problem — an estimation or approximation problem with limited information and back-of-the-envelope calculations. There's no right answer: interviewers want to understand how you think and how well you can explain your reasoning, rather than what you already know.
Recall the formula for Fermi problems:
Ask clarifying questions
Catalog what you know
Make equation(s)
Think about edge cases to add to equation
**Breakdown components of your"See full answer
"This is another Fermi problem — an estimation or approximation problem with limited information and back-of-the-envelope calculations. There's no right answer: interviewers want to understand how you think and how well you can explain your reasoning, rather than what you already know.
Recall the formula for Fermi problems:
Ask clarifying questions
Catalog what you know
Make equation(s)
Think about edge cases to add to equation
**Breakdown components of your"
Exponent - "This is another Fermi problem — an estimation or approximation problem with limited information and back-of-the-envelope calculations. There's no right answer: interviewers want to understand how you think and how well you can explain your reasoning, rather than what you already know.
Recall the formula for Fermi problems:
Ask clarifying questions
Catalog what you know
Make equation(s)
Think about edge cases to add to equation
**Breakdown components of your"See full answer
"You should be able to easily identify this as a Measure Success question. These kinds of questions are used to test your analytical skills, as well as your ability to track project progress post-launch.
Recall the strategy for tackling them methodically and thoroughly:
Ask clarifying questions
State the goal of the feature / product
Behavior Mapping / UX Flow Mapping
Provide criteria to prioritize metrics
Prioritize metrics
Summarize
Let's begin!
"
Exponent - "You should be able to easily identify this as a Measure Success question. These kinds of questions are used to test your analytical skills, as well as your ability to track project progress post-launch.
Recall the strategy for tackling them methodically and thoroughly:
Ask clarifying questions
State the goal of the feature / product
Behavior Mapping / UX Flow Mapping
Provide criteria to prioritize metrics
Prioritize metrics
Summarize
Let's begin!
"See full answer
"This is a fun Fermi problem asked recently by Facebook — an estimation or approximation problem with limited information and back-of-the-envelope calculations.
Recall the formula for Fermi problems:
Ask clarifying questions
Catalog what you know
Make equation(s)
Breakdown components of your equation
Review and state assumptions
Compute
Sanity Check
Summarize
Ask clarifying questions
It's wise here to slow down and get some clari"
Exponent - "This is a fun Fermi problem asked recently by Facebook — an estimation or approximation problem with limited information and back-of-the-envelope calculations.
Recall the formula for Fermi problems:
Ask clarifying questions
Catalog what you know
Make equation(s)
Breakdown components of your equation
Review and state assumptions
Compute
Sanity Check
Summarize
Ask clarifying questions
It's wise here to slow down and get some clari"See full answer
"How Much Oil Does the U.S. Import (In Barrels Per Year)?
Note: focusing solely on oil used for car gasoline, excluding cooking oil and other uses.
Step 1: Estimate Total Cars in the U.S.
U.S. Population: 300 million
Adults with Driver’s Licenses (DLs): 60% of the population are adults who drive
300M × 0.6 = 180M adults with DLs
Car Ownership: Assume 90% of adults with DLs own cars
180M × 0.90 = 160M cars
Note: We are disregarding electric cars, buses"
Sampada J. - "How Much Oil Does the U.S. Import (In Barrels Per Year)?
Note: focusing solely on oil used for car gasoline, excluding cooking oil and other uses.
Step 1: Estimate Total Cars in the U.S.
U.S. Population: 300 million
Adults with Driver’s Licenses (DLs): 60% of the population are adults who drive
300M × 0.6 = 180M adults with DLs
Car Ownership: Assume 90% of adults with DLs own cars
180M × 0.90 = 160M cars
Note: We are disregarding electric cars, buses"See full answer
"This is a Fermi problem — an estimation or approximation problem with limited information and back-of-the-envelope calculations. There's no right answer: interviewers want to understand how you think and how well you can explain your reasoning, rather than what you already know.
Recall the formula for Fermi problems:
Ask clarifying questions
Catalog what you know
Make equation(s)
Think about edge cases to add to equation
**Breakdown components of your equat"
Exponent - "This is a Fermi problem — an estimation or approximation problem with limited information and back-of-the-envelope calculations. There's no right answer: interviewers want to understand how you think and how well you can explain your reasoning, rather than what you already know.
Recall the formula for Fermi problems:
Ask clarifying questions
Catalog what you know
Make equation(s)
Think about edge cases to add to equation
**Breakdown components of your equat"See full answer
"The design review has three stages; In-draft, Review and Complete. I consider a design review completed when the problem statement has been clearly addressed via a feature or a solution and signed off on by all the key stakeholders along with engineerings."
Sam M. - "The design review has three stages; In-draft, Review and Complete. I consider a design review completed when the problem statement has been clearly addressed via a feature or a solution and signed off on by all the key stakeholders along with engineerings."See full answer
"I have softened recruited people through LinkedIn. People from LinkedIn are more than happy to share their feedback on new products and features and to my surprise, I also saved a lot of company money on recruiting through services and offered Amazon vouchers to participants instead."
Guru M. - "I have softened recruited people through LinkedIn. People from LinkedIn are more than happy to share their feedback on new products and features and to my surprise, I also saved a lot of company money on recruiting through services and offered Amazon vouchers to participants instead."See full answer
"Adding to what Zoe already mentioned:
running a user study with existing customers to understand if they see the proposed design as favorable
running AB testing with users to compare two different designs and decide which one is more favorable (based on a previously determined metrics)"
Vlada J. - "Adding to what Zoe already mentioned:
running a user study with existing customers to understand if they see the proposed design as favorable
running AB testing with users to compare two different designs and decide which one is more favorable (based on a previously determined metrics)"See full answer
"Clarify:
Everything mentioned in the question (all devices and how to access them)
Reasons why a subscriber might not be using?
Forgot that he has a subscription
Doesn't like the service and forgot to cancel the subscription
Doesn't like service and planning to cancel in next cycle
For all 3 cases we need to remind him/her about the service and encourage to use it
Awareness - about the service via google nest notifications, smart refreigerator display, chromecats to cast youtube"
Rev - "Clarify:
Everything mentioned in the question (all devices and how to access them)
Reasons why a subscriber might not be using?
Forgot that he has a subscription
Doesn't like the service and forgot to cancel the subscription
Doesn't like service and planning to cancel in next cycle
For all 3 cases we need to remind him/her about the service and encourage to use it
Awareness - about the service via google nest notifications, smart refreigerator display, chromecats to cast youtube"See full answer
"First Contextual Questions: Opportunities & Threats for whom? Assuming for Google Maps only
Approach:
Google’s Vision & Mission > Where does Maps fit into that?
Analysing use case that Google Maps serve?
SWOT Analysis
My View
## Google Vision & Mission: To organize world’s information and make it universally accessible and useful
Google Maps Strategic Fit: _Google Maps provides organization of geographic information, allows users to change/add/delete c"
Sourabh M. - "First Contextual Questions: Opportunities & Threats for whom? Assuming for Google Maps only
Approach:
Google’s Vision & Mission > Where does Maps fit into that?
Analysing use case that Google Maps serve?
SWOT Analysis
My View
## Google Vision & Mission: To organize world’s information and make it universally accessible and useful
Google Maps Strategic Fit: _Google Maps provides organization of geographic information, allows users to change/add/delete c"See full answer
"As we can pass info to only one child at a time, I told that from any given node, we have to pass the info to that child(of this node) which has the largest subtree rooted at it. To calculate the subtree sizes, I used DFS. And then to calculate the minimum time to pass info to all the nodes, I used BFS picking the largest subtree child first at every node. I couldn't write the complete code in the given time and also made a mistake in telling the overall time complexity of my approach. I think t"
Lakshman B. - "As we can pass info to only one child at a time, I told that from any given node, we have to pass the info to that child(of this node) which has the largest subtree rooted at it. To calculate the subtree sizes, I used DFS. And then to calculate the minimum time to pass info to all the nodes, I used BFS picking the largest subtree child first at every node. I couldn't write the complete code in the given time and also made a mistake in telling the overall time complexity of my approach. I think t"See full answer