The full problem statement is available to Pro members.
preloaded fixtures
import pandas as pd
import numpy as np
trips = pd.DataFrame({
"trip_id": [1, 2, 3, 4, 5, 6, 7, 8, 9, 10],
"driver": ["alex", "alex", "sam", "sam", "alex", "jordan", "jordan", "sam", "alex", "jordan"],
"city": ["SF", "SF", "NYC", "NYC", "SF", "LA", "LA", "NYC", "SF", "LA"],
"fare": [12.5, 8.0, 20.0, 15.0, 9.5, 18.0, 22.0, 11.0, 14.0, 16.5],
"surge": [1.0, 1.0, 1.5, 1.2, 1.0, 2.0, 1.5, 1.0, 1.3, 1.8],
"distance": [3.2, 2.1, 5.5, 4.0, 2.8, 6.0, 7.2, 3.5, 3.8, 5.0],
})
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“Fare per mile by city”
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Pro problem
“Fare per mile by city”
This is one of the real interview questions in Pro. Try Pro free for 7 days to unlock it and everything below:
- 293 interview-grade problems across SQL, Python & pandas
- 104+ real-world SQL problems: SaaS retention, fintech ledgers, supply chain, recursive CTEs
- 18 company interview packs (Amazon, Meta, Google, Uber and more)
- AI "explain my mistake" tutor and mock interviews
- Use QueryLab inside Claude, Cursor & other AI assistants
// built for real interview rounds
Practice the patterns 18 top companies test
329 problems · 36 free forever · 293 unlocked with Pro
Card required. Then $12/month. Cancel before your trial ends and you pay nothing.
or keep practicing free problems →Secure checkout by Paddle · instant access · cancel anytime from your account