Estimate the number of hairs on an average human head.
Not as much as you'd like!
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What is a Fermi problem / guesstimate?
Simple, estimate type
questions that improve how you think
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How much domestic waste does the UK produce in a year?
The UK has a green wheelie bin used to pick up garbage.
How long does it take to attain fluency in a language?
To estimate the time here, let’s define what a language is. Simply and very crudely, language is a collection of words. And these words are
#9 How many electric power does one Indian family use?
Solved using the up-bottom approach
#10 How many people in the world are picking their nose right now?
A very disgusting number.
#5 On average, how many people are airborne in India in any given moment?
A Basic Fermi Problem
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