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Large Number (Posted on 2003-05-06) Difficulty: 3 of 5
Assume there are approximately 5,000,000,000 people on earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hands?

(If you cannot estimate the number, then try to guess how long the number would be.)

See The Solution Submitted by chris    
Rating: 3.8571 (7 votes)

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Solution | Comment 8 of 18 |
Well assuming every person has 5 fingers on their left hand, you simply take 5,000,000,000 * 5 and the product is 25,000,000,000 . Pretty simple. If I got that, which I'm positive is correct, and i'm only a 7th grade level 1 math student, then there's no excuse for the rest of you! hehe :)
  Posted by katey on 2003-05-08 11:04:13
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