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Math skills (lemmy.world)
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[-] boyi 42 points 6 months ago* (last edited 6 months ago)

this could happen due the sister moving ~~faster than~~ closer to the speed of light relative to her brother.

edited: correcting theoretical error. Thanks to pearsaltchocolatebar@discuss.online for pointing that out.

[-] _danny@lemmy.world 16 points 6 months ago

Or if the sister died.

[-] pearsaltchocolatebar@discuss.online 13 points 6 months ago

Not faster than, just closer to it than the older sibling.

[-] boyi 4 points 6 months ago

yep my bad. forgot theoretical (in vacuum) we can't travel faster.

[-] Jimmycrackcrack@lemmy.ml 19 points 6 months ago

I've seen this one before in a popular YouTube video that was going round of a builder springing this one on his poor mate who fell for it and after everyone started laughing at him still couldn't figure it out and still couldn't after being given a second chance and still.didn't understand when it was explained to him through steiffked giggling.

I didn't understand it then until embarrassingly late in to the video and felt bad for the poor guy who obviously cops that shit from his 'friend' a lot so the memory and details of it really stuck with me.

I saw this post, saw the title read the first part of the setup, knew something was coming and still fucking guessed 35 and although I knew that that was the trick answer that this is rigged to elicit and knew that I was wrong I still couldn't figure it out for like several seconds. Something about this pretty simple trick is remarkably effective at short circuiting my brain even when I know the correct answer.

[-] MajorHavoc@programming.dev 17 points 6 months ago

"Wrong. That sister is a decoy. I tell her to meet me in Mexico, but I go to Canada. I don't trust her. Besides, I like the cold. Thirty years later, I get a postcard. I have a son and he's the chief of police. This is where the story gets interesting. I tell Tiffany to meet me in Paris by the Trocadero. She's been waiting for me all these years. She's never taken another lover. I don't care. I don't show up. I go to Berlin. That's where I stashed the chandelier. "

[-] dhtseany@lemmy.ml 16 points 6 months ago
[-] bingbong@lemmy.dbzer0.com 45 points 6 months ago
[-] superbirra@lemmy.world 8 points 6 months ago

let's have a hard one next time please

[-] vinylshrapnel@lemmynsfw.com 9 points 6 months ago* (last edited 6 months ago)

Not enough info to say for sure, but between 66½ and a day before 68 years old. It depends on when during the age of 6 the sister was exactly half the age. The sister is between 3-3½ years younger and we don’t know exactly where during the older sibling’s 70th year the question is posed.

[-] RootBeerGuy@discuss.tchncs.de 9 points 6 months ago
[-] Fixbeat@lemmy.ml 7 points 6 months ago

Somebody going to tell him?

[-] GenderNeutralBro 6 points 6 months ago
[-] Zeroc00l@sh.itjust.works 5 points 6 months ago

Me gusta indeed

[-] yokonzo@lemmy.world 1 points 6 months ago
[-] cyberpunk007@lemmy.ca -3 points 6 months ago

I fell for it 😅

this post was submitted on 26 Jan 2024
348 points (95.3% liked)

Confidently Incorrect

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When people are way too smug about their wrong answer.

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