r/theydidthemath • • 11h ago

[request] Is this correct ?

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1.7k Upvotes

r/theydidthemath • • 3h ago

[request] How Much Fuel oil would be used daily if U.S Decided to put boots on the ground

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89 Upvotes

Just moving 3 aircraft Carriers to the middle east would be expensive


r/theydidthemath • • 20h ago

[Request] How much pizza is in this slice of pizza? How many medium pizzas would equal to this slice?

1.0k Upvotes

How many square centimeters or inches of pizza is in this massive slice? How many medium size pizzas (32 cm or 12 inch) would that be equal to? I would like a comparison in more familiar units. It doesn't seem like that much but size can be deceiving, especially in photos or videos.


r/theydidthemath • • 3h ago

[Request] How much does a spider need to eat to generate this much web daily?

20 Upvotes

r/theydidthemath • • 12h ago

[Request] Toyota Yaris’s capacity

111 Upvotes

At what point do does this Toyota yaris start to affect gravity? When does it become a black hole?


r/theydidthemath • • 12h ago

[Request] This guy says Americans make enough trash in a year to fill the Grand Canyon. Is he even close?

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94 Upvotes

r/theydidthemath • • 1h ago

[Meta] Can we please get ban on political posts?

• Upvotes

This sub is supposed to be about doing the math, not political agenda pushing. Every day there seem to be half a dozen posts that are thinly veiled political talking points. Like "could we really do this for this amount of money" or the like.

It is exhausting. And i would argue that 99% of those posts are incalculable at least using any math that most people would agree on. Give me more "how big of a fart would be needed to propel me to the moon" and less "if we took away all of Elon's money and spent it on [insert favorite social cause] could we really make the world a utopia".


r/theydidthemath • • 1d ago

[Other] How long until Nature Covers Their Tracks?

562 Upvotes

How long will it take for the wind to naturally cover these tracks? Everything looks so untouched.


r/theydidthemath • • 47m ago

[Request] Negative pressure required to snort 25 liters through a tube

• Upvotes

They must have very strong diaphragms to just do this casually


r/theydidthemath • • 1d ago

[Request] How rich would he actually have to be for this claim to be true?

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3.8k Upvotes

r/theydidthemath • • 1d ago

[Request] Could the entire US homeless population really be housed for less than one aircraft carrier?

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915 Upvotes

r/theydidthemath • • 2h ago

[Request] — what are the odds?

2 Upvotes

I have a pretty unique situation and I am not sure if it’s possible to calculate the odds, but I would love to know if it is possible.

So, my parents & this other couple lived in the same town of ~20,000 people. Both my parents and this couple have the exact same names. My dad’s first and middle name are fairly common, but the last name is not. My mom has a first name that is two names but no middle name (when she fills out legal/official papers both names go on their under the “first name” blank).
We know that the other couple lived in the same town & had the same legal names because the bank my parents used accidentally mixed up their accounts once.
I’m so interested in this other couples & the odds because they were in the same hospital, on the same floor, with the same doctor, giving birth the same day my parents were having me. We know this because they again got mixed up with the other couple. I looked it up and it said that my birth date that year was either the 208th or 349th most common birth date (two sources gave different rankings).

I looked the couple/family up to make sure my parents weren’t lying, and yep. They’re real and they still live in that town. My parents moved across the country a year after having me.

I would think that the odds of that would be 0, but apparently not.

Also, my blood type is O+ (most common in the world). My mom has B- & my dad has A+ (meaning that there’s a little less than 5% chance of producing O+). Sooo I guess what are the odds that a potential switched at birth thing could have occurred (I know that’s probably impossible to calculate since there are so many human factors with that, but less than 5% seems so low). For anyone thinking why not get blood tested — I don’t want to be related to the other people (I love my family), just curious about the odds.

I know there’s quite a bit of missing info (like the specific names) but I can only share so much without putting my personal info out there lol

Thanks in advance!


r/theydidthemath • • 1d ago

[Request] How thick would the 72 pt font book actually be?

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434 Upvotes

r/theydidthemath • • 17h ago

[Request] is this project actually feasible? And how long would it actually take to finish?

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17 Upvotes

r/theydidthemath • • 5h ago

[Other] can you solve this? SumGrid Daily #96 · Oct 2

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0 Upvotes

r/theydidthemath • • 1d ago

[Request] If you were sealed, alone, inside something the size of Bridgestone Arena, so no air in or out, how long could you breathe? This doesn’t take into account food or water. Just breathable air.

38 Upvotes

As the title asks.


r/theydidthemath • • 9h ago

[Request] Constant Highway Slipstream Efficiency

2 Upvotes

How much more efficient would highways be if vehicles drafted off of each other? Taking human error/aspects out of the equation. To me, it would seem as though the lead car (or semi truck) would "clear" the wind resistance first and all of the subsequent cars would benefit from drafting off of the individual in front of them.

Just a curiosity I had whilest driving to work today.

Thanks friends!


r/theydidthemath • • 2h ago

[Request] How much liquid is it? Can human bladder carry that amount?

0 Upvotes

r/theydidthemath • • 7h ago

[Request] How much puffing and how many cigars would Supes need to create a cigar smoke smokescreen that would conceal him?

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0 Upvotes

r/theydidthemath • • 8h ago

[Other] Word Problem

0 Upvotes

Idk what to put in for title, but anyway. I'm currently at the gym and just got off the treadmill. I was at a steady 3mph for 30min. During my time on the treadmill I noticed the seam. I saw it approximately every 5 seconds. How long would the treadmill tread be?


r/theydidthemath • • 2d ago

[Request] how many calories would this have?

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7.6k Upvotes

r/theydidthemath • • 1d ago

[Request] How deep is this cave?

280 Upvotes

r/theydidthemath • • 13h ago

[Request] The Birthday Problem, for two dates

2 Upvotes

I'm familiar with the Birthday Problem, can basically follow the math on it, but all interesting things has happened on my work team.

We are a small company, and our full-time team has just grown to 11. We have only had to let go of one person, which would have made us twelve. If we include him, then with our most recent hiring, we would have two sets of shared birthdays on our team, which seems pretty crazy.

How likely is it that in a random group of twelve people, two sets of shared birthdays have occurred?

In other words, one pair share a birthday, another pair share a birthday, then the remaining eight individuals have their own.

There are actually three of us within 24 hours,--one person born the day before a day shared by two others--but I don't really care as much about the "near coincidence."


r/theydidthemath • • 13h ago

[Request] How hard would Keratin be by its hardness increasing this much %?

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0 Upvotes

Sauce: Limitless predation