How would you answer the brainteaser question:
How many cows are there in Canada?
I started by assuming:
- Canada population = 200 million
- Average Canadian consumes 500g of beef a week
- Average cow weight is 150 kg
So the answer is (200 million * 500 g) / 150 kg = 666666 cows.
I don't think this is a correct way to approach the question, because my answer is time-dependent (the second assumption is a weekly one).
How would you approach this question?
Thank you very much.