Capital One·Data Scientist·Technical Phone Screen·Intermediate

Intermediate

Jun 2026

Summary

Capital One Data Scientist interview with a burger profitability case that looked like basic arithmetic but had a few moving parts worth thinking through carefully.

Questions Asked (1)

You have two scenarios: Scenario A sells only Regular burgers (price $4, cost $1). Scenario B introduces Vegan burgers (price $4, cost $2) alongside Regular, in a 2:3 Vegan-to-Regular ratio, keeping total units sold the same. Calculate the average profit per burger in each scenario, the per-burger difference (B minus A), and the total profit impact across 1,000,000 burgers.

Pricing & MonetizationProduct Analytics & Metrics

Author's notes

The per-unit math is straightforward once you set it up: Regular profit is $3, Vegan is $2.

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AI HintsAI Generated

Suggested Approach

First, compute the profit per burger for each type in both scenarios, then use the given sales mix to find the weighted average profit per burger. Next, calculate the difference between the two averages and multiply by 1,000,000 to get the total profit impact. Clearly state assumptions and interpret the result in terms of business implications.

Pro tip: Always double-check whether the 2:3 ratio is Vegan:Regular or Regular:Vegan, as misinterpreting it flips the profit impact. Also, mention that this is a simplified analysis and that real-world factors like cannibalization and demand elasticity should be considered.

1. Calculate per-burger profit for each type

For Regular: profit = $4 - $1 = $3. For Vegan: profit = $4 - $2 = $2.

2. Determine sales mix and weighted average profit

In Scenario A, all burgers are Regular, so average profit = $3. In Scenario B, the ratio Vegan:Regular = 2:3 means 40% Vegan and 60% Regular. Weighted average = 0.4*$2 + 0.6*$3 = $0.8 + $1.8 = $2.60.

3. Compute per-burger difference (B - A)

Difference = $2.60 - $3.00 = -$0.40 per burger.

4. Calculate total profit impact for 1,000,000 burgers

Total impact = -$0.40 * 1,000,000 = -$400,000. So Scenario B yields $400,000 less profit than Scenario A.

5. Interpret and contextualize

Explain that introducing Vegan burgers reduces average profit per burger due to higher cost, despite same price. Discuss potential strategic reasons for offering Vegan despite lower profit, such as market expansion or customer retention.

Key Points to Mention

Profit per burger: Regular = $3, Vegan = $2
Weighted average calculation using the 2:3 ratio (40% Vegan, 60% Regular)
Scenario A average profit = $3.00, Scenario B average profit = $2.60
Per-burger difference = -$0.40 (B is lower)
Total profit impact = -$400,000 for 1,000,000 burgers
Business implications: short-term profit decrease but potential long-term benefits like market share or customer acquisition

AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.