• DarkThoughts@fedia.io
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      6 months ago

      I’m sure she’s a nice girl, but I don’t think I could bear such a large intellectual gap for too long. Stuff like this becomes frustrating quite quickly. But then again, in their case it might not be too big of a gap anyway. Understanding the basic principles behind measuring units does not make him Einstein.

  • TempermentalAnomaly@lemmy.world
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    6 months ago

    This one question breaks American brains.

    2 cars approach each other, with 20 km between them. The speed of each car is 10 kmph. At 20 km apart from each, a fly starts traveling from one car towards another at 15 kmph. Once it reaches the other car, it turns back and starts towards the first car. It continues to do this until the cars meet/collide. How much distance does the fly cover in total?
    

    /s

    • Ace@feddit.ukOP
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      6 months ago

      is it just 15km? The cars meet after an hour and the fly is going 15kmph for 1h, so all the bouncing back and forth is irrelevant. Feels like a trick question and I’m missing something though

      • TempermentalAnomaly@lemmy.world
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        6 months ago

        Totally. There’s a funny story about this question going around the Princeton Advanced Studies center. Some would see the trick, but many would get stuck on trying to add up each portion of the journey.

        And then they took the question to von Neumann. It begins to consider it and our come 15 km. They’re elated and say, you must have gotten the trick. “What trick? All I did was add up the geometric sum.” And a couple of insanely smart people left dumbfounded at how smart von Neumann was.

        Of course, he could have been pulling their leg.

  • antlion@lemmy.dbzer0.com
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    6 months ago

    If you go 80 mph on the way there, and immediately turn around and go 60 mph on the way back, what is your average speed for the 160 mile trip?

    Tap for spoiler

    68.6 mph

  • JCreazy@midwest.social
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    6 months ago

    It is quite devastating when you see people lacking even the most basic or common of knowledge. No wonder the world is in a state that it is in. You can’t expect people to make changes when they barely even know how the world works.

    • grrgyle@slrpnk.net
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      6 months ago

      I mean some people just freeze up around numbers. That’s not the end of the world as long as they know that they suck at that.

      Like I’m a programmer and I’m like comically bad at math. Like 3 Stooges bad. If I’m forced to do math on the spot I will expand a lot of energy figuring out exactly the wrong thing.

      • frozen@lemmy.frozeninferno.xyz
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        6 months ago

        Same! Senior dev here with both dyscalculia and dysgraphia. Numbers literally transpose for me, for example when I’m filling out a restaurant receipt and calculating tip+total. It’s wild.

        • grrgyle@slrpnk.net
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          6 months ago

          Oh, lightbulb. I’m wildly bad at numbers even outside of math. Like I no longer trust myself to type even four digit ticket numbers by hand - copy paste only!

          Maybe I’ve got a little bit of that

  • magnetosphere@fedia.io
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    6 months ago

    He’s not even phrasing it as a riddle. The answer is right there in the question. That poor woman.

  • blackluster117@possumpat.io
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    6 months ago

    I couldn’t get past her starting the mental math. “If I run a mile in 8 mins…” This lady can vote, drive a car, and purchase a firearm. We’re so fucked.

  • NoRodent@lemmy.world
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    6 months ago

    Ahh, haven’t seen this in a long time.

    Though you kinda have to give to her, that her initial guesstimate was 58 minutes. That’s just 3.3% error, not bad considering the ridiculous way she arrived at that number. Maybe she’s really good at estimates but can’t do any precise math. She might even be an engineer.

  • Ironchico@lemmy.world
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    6 months ago

    And people wonder why America is the way it is. A grown ass adult married woman can’t even grasp the concept of mph. The school system has majorly failed this woman. It’s like even the concept of critical thinking has been eradicated.