Can you solve this guesstimate question?
What is the number of people in Mumbai who own a smartphone?
The population of Mumbai: 21 Million.
Number of Indians who use smartphones: 220 Million.
Please mention your approach and assumptions.
Mumbai being the business and entertainment hub of India, it can be safe to assume that at least 75-80% of the population of Mumbai owns a smartphone. (More information about the people living at or below the poverty line would help in determining the exact value.)
Also, it could be the case that 25-20% of the population in Mumbai may fall under the categories where they cannot afford a smartphone or not comfortable in using one. Assuming that a majority of the population prefer smartphones which consist of working professionals and students in Mumbai. Hence, further information about the percentage of population comprising of professionals & students will help.
As a guesstimate: Between 15.7 to 16.8 Million people
Assumptions taken on the basis of general insights.
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