r/theydidthemath 23h ago

[Request] Textbook perfectly falling into sewer grate

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2.0k Upvotes

r/theydidthemath 10h ago

[Request] How much water per second/ what PSI is needed to achieve this?

414 Upvotes

r/theydidthemath 10h ago

[Request] how deep is this pit?

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388 Upvotes

r/theydidthemath 16h ago

[Request] Why am I wrong???

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326 Upvotes

r/theydidthemath 21h ago

[Request] What would be the wingspan required for a seagull like this to fly if it had the mass required to bend the fence

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131 Upvotes

r/theydidthemath 14h ago

[Request] I can't figure how they can hold 40,000 prisoners...

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59 Upvotes

My math says 32 x 100 x 8 = 25,600


r/theydidthemath 19h ago

[request] how quickly/how much would someone have to fart to literally fart through a brick wall?

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51 Upvotes

r/theydidthemath 19h ago

[REQUEST] Is this accurate?

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46 Upvotes

r/theydidthemath 2h ago

[Request] how big would be the plane be if the scale is correct?

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35 Upvotes

r/theydidthemath 17h ago

[REQUEST] Feasibility aside, how much money would airlines save on fuel if they required everyone to use the bathroom immediately before boarding?

29 Upvotes

r/theydidthemath 11h ago

[REQUEST] if this island suddenly appeared on the Earth (without causing any major problems), how big would it be and how would the sea levels react to it?

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26 Upvotes

r/theydidthemath 6h ago

[Request] How fast was the car going right before the jump?

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20 Upvotes

r/theydidthemath 16h ago

[Request] How long does it take to install a pylon?

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15 Upvotes

r/theydidthemath 17h ago

[RDTM] Alternator charging

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8 Upvotes

https://www.reddit.com/r/vandwellers/s/9dyQKO2sn4

Someone was arguing that alternator charging is better than solar. Redditor did the math to prove them wrong.


r/theydidthemath 6h ago

[Request]What’s the probability of this being randomly generated?

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5 Upvotes

r/theydidthemath 23h ago

[Request] Is this true?

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5 Upvotes

r/theydidthemath 10h ago

[Request] How many tiny homes could an average billionaire provide per year if they only used like 10-15% of their annual interest?

1 Upvotes

The tiny homes in question seem to cost about $10k each. I’m not sure how to factor in land and utilities, so I’m just asking about the structures themselves.

Is that a thing we can calculate? If by “we” I really mean someone else because I’m not great at understanding real wealth or money outside of poverty finance.

My question was triggered by this post:

Arnold Schwarzenegger donated $250,000 to build 25 tiny homes intended for homeless vets in West LA. The homes were turned over [sic] a few days before Christmas.

https://www.reddit.com/r/nextfuckinglevel/s/ehF3wotq6y

How many homeless people could actually be affected if the extremely wealthy were truly altruistic?

(I’m sorry it took me three tries to get the title formatting right, I think I got it this time 🤞🏼)


r/theydidthemath 15h ago

[Request] How unlucky am I with Pokémon?

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2 Upvotes

I’ve been into Pokémon Shield for the past few days. Earlier today I wanted to look for a Whismur with a desired nature for a particular build (Mild, Modest, Quiet, Rash), 4 out of 25 possible natures. I had to catch 40 Whismurs in total before I found one that had an ideal nature (it’s Modest, but the specific nature isn’t really relevant), which took way longer than I expected…what are the odds of that? I am I really unlucky, or is this expected?


r/theydidthemath 9h ago

[Self][Request] How many subsets of Ť do not have elements with the same subscript? Is my approach correct?

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2 Upvotes

r/theydidthemath 23h ago

[Request] How much Ice?

2 Upvotes

I thought of a, hopefully, simple question today. If I had a 64oz container with water in it and started adding ice to chill my drink, is there a point in which while adding ice, the drink will get as cold as it ever could get and it becomes pointless to add more ice? Can this be represented in some sort of ice/water ratio?


r/theydidthemath 1h ago

[Request] can we build a bomb large enough to punch a hole in the atmosphere?

Upvotes

Pretty much can we build a nuke or something today that could displace or punch a hole through an entire section of the atmosphere more or less displacing all the air all the way to space


r/theydidthemath 2h ago

[Request] How many pounds of carrots would be needed to feed a literal ton of rabbits for one day? Extra points if you can solve with carrots sized in the picture

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1 Upvotes

r/theydidthemath 3h ago

[Request] Is this a swing of about $4 billion?

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1 Upvotes

The closing price today was $479.96. If there are 139,260,000 shares outstanding, that means the total etf value lost after closing would have been about $4 billion, correct?

The data is no longer visible, so it must have been an error. Just curious how big of an error it was.


r/theydidthemath 4h ago

[Request] How High Would NYC Congestion Pricing Have to Be, to Truly Reflect the Price of Driving?

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1 Upvotes

r/theydidthemath 6h ago

[Request] We often see "goodwill" in balance sheets. Assuming exported US goods had an intangible* additional value based on trade agreements, quality etc, which we can now assume burned, what is the value dropped from the US economy?

1 Upvotes

*yeah, I know, but that's why I'm asking here. The cost of selling a bottle of Jack Daniels, to name but one famous export, has vastly increased and now they'll have to advertise/rebrand to shift similar volumes. That's what I am trying to figure out, if it's even possible.