Only 99.99%? That’s not enough…

From xkcd

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Category: Funny, Science & Nature

12 Responses

  1. Andrew says:

    That still leaves a lot of germs. how do they survive.

  2. Andrew says:

    Um, that equation is finding 1% not .01% of 200 million. . . . Just saying.

    • Marci says:

      When you include the percent sign the equation is correct. But I do understand where you’re coming from, leaving on the percent sign is misleading. When I was in school, we couldn’t just “leave the percent sign on” and have the calculator convert for us, we had to know that .01% mean to multiply by .0001.

  3. Al says:

    @Andrew, get your Excel spreadsheet and multiply 20MM by 0.01 and by 0.01%… Remember to add the “%” sign at the end… Just saying…

  4. Bunge says:

    Equation is correct. My question is whether the 99.99% claim is volume or type. Does it kill 99.99% of the 200 million in a sneeze, or does it kill 99.99% of all the different varieties of germs, leaving some types of germs safe?

  5. Lame says:

    You guys need to get laid

  6. B says:

    Still more effective than a flu shot. Just saying!

  7. Ron says:

    The math is off.. 99.99% leaves 0.01% which if multiplied by 200,000,000 would be 200,000,000 * 0.0001 not 0.01 which is 1.0%. This is why a decimal is so important.. so there is only 20,000 germs left on your hand.. (which is still gross) but better!!

    • Carr says:

      The other comments already said this, but here it goes again: The cartoon is multiplying 200,000,000 by 0.01% not by 0.01. Just like you said, 0.01 is not the same as 0.01%, so pay attention to that when you read the comic too.

  8. Math Whiz says:

    I love watching you little people argue about 5th grade math like it’s actually difficult. Thanks for giving me more proof that I really am smarter than the average bear.

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