App-based cab rides per day in a metro
Demand build with a supply-side reconciliation.
Estimate daily app-based cab rides (Uber/Ola-style, four-wheelers) in a 10-million metro. Do it demand-side, then reconcile against driver supply — if your demand number implies each driver does 40 rides a day, your demand number is wrong.
User base
10M people → smartphone + affordability + habit filter → ~1.5M monthly ride-hailers.
Frequency
Frequent users (daily commuters, airport-heavy) 20% × ~1.2 rides/day; occasional 80% × ~0.15/day → ~540K rides/day.
Supply check
~45K active cabs; a full-time driver completes 12–15 rides/day but part-timers drag the average to ~12 → ceiling ~540K. The builds agree.
Range
Quote 5–5.5 lakh/day, noting it doubles on rainy Fridays and halves on holiday mornings.
How to defend it
The two-sided reconciliation is the move interviewers remember. If pushed on auto-rickshaws/bike taxis, clarify scope upfront — "app-based four-wheeler" — scope discipline is free marks.