Estimation question

Estimate the number of Facebook users in India.

Practice this question out loud. An AI interviewer asks it, follows up like a real interviewer would, and scores your answer. Type or speak.

What this question tests

Estimation using population, internet penetration, and platform specific adoption rate.

Start with India's population, roughly 1.4 billion people.
Estimate internet users, around 55 to 60 percent penetration, giving roughly 800 million internet users.
Estimate the share of internet users active on Facebook specifically, distinct from WhatsApp or Instagram, around 35 to 40 percent.
Multiply internet users by Facebook adoption rate to estimate total Facebook users in India.
State the result as a range and flag this is Meta's largest single country user base.

Separates Facebook from other Meta apps like WhatsApp, since the question asks specifically about Facebook.
Shows the math, 800 million internet users times 37 percent adoption gives roughly 300 million Facebook users.
Notes the real world anchor, India widely reported as Facebook's largest market, to sanity check the estimate.

Conflating Facebook with WhatsApp or Instagram, which have different adoption levels in India.
Using a flat percentage of total population instead of internet users specifically.
No sanity check against known facts about India being Facebook's biggest market.

How would you estimate daily versus monthly active users from this number?
How confident are you in the internet penetration assumption, and how would you verify it?