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Top 50 guesstimation Interview Questions

The most frequently asked guesstimation questions across all roles and companies, ranked by real interview frequency. Updated daily.

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1
StrategyStart here. 42 questions · ~336 min
Managed Cloud TAM in IndiaMedium

Estimate the TAM for a new managed cloud service in India using a structured market sizing approach and explicit assumptions.

cloud servicesguesstimationMarket SizingDevoteamNTT DATAGoogle Cloud
Coffee Shop Revenue EstimateHard
Recently asked

Estimate average annual revenue from coffee products for a typical UK coffee shop using transparent assumptions and sensitivity analysis.

Estimationguesstimationanalytical thinkingAllianceBernstein
Estimating Employees in a BuildingMedium

Estimate how many employees work in a building using the best available data and explain why.

Estimationguesstimationanalytical thinkingNavy Federal Credit Union
Energy Market GuesstimationMedium

Estimate India's iPhone user base using a transparent bottom-up model and cross-check it against market and replacement data.

Estimationguesstimationanalytical thinkingPPraxis Global AllianceRystad Energy
Tennis Balls in an AirplaneMedium
Recently asked

Estimate how many tennis balls could fit inside an aeroplane using clear assumptions and dimensional reasoning.

Estimationguesstimationanalytical thinkingNetflix
Market Sizing: Busker EarningsMedium

Estimate a Chinatown busker’s weekly earnings using foot traffic, conversion, donations, performance hours, and sensitivity analysis.

Estimationmarket analysisguesstimationSimon-Kucher
Market Sizing EstimationMedium

Estimate Nike’s US running shoe sales using a transparent market-sizing approach and defend the key assumptions.

Estimationguesstimationanalytical thinkingAllianceBernstein
Egg Value in New YorkHard

Estimate the retail value of eggs consumed in New York tomorrow morning using transparent assumptions and sensitivity analysis.

Estimationguesstimationanalytical thinkingAllianceBernstein
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2
Execution3 questions · ~24 min
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3
More topics5 questions · ~40 min
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
SQL Query and EstimationMedium
Practice
Practice drill

Total completed burger sales with SQL, then extrapolate the observed daily average into a reasonable 30-day estimate.

EstimationData ManipulationsqlHHackerRank
Using Data to Solve ProblemsMedium
Practice
Recently asked
Practice drill

Use campaign data to compare conversion performance and demonstrate a data-driven answer with PostgreSQL.

JoinsData Analysisbusiness problemMicrosoft
SQL Problem Solving WalkthroughHard
Practice
Recently asked
Practice drill

Analyze monthly entity totals, month-over-month changes, and segment rankings from a relational dataset.

data preparationData AnalysisProblem SolvingCentene
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