How many leaves lie on the average American lawn in the month of November?
Fermi Questions
Friday, November 30, 2007
FA #1-Black Friday
Take the population of America (~300,000,000) and multiply that by the fraction of Americans who will go shopping (24/100). The answer is: 300,000,000*(24/100)=72,000,000 or 7.2E7. So FA#1 = 7.
Friday, November 23, 2007
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