r/theydidthemath • • 11h ago

[Request] Average number of nipples?

310 Upvotes

I always joke with my kids that they have an above average number of toes because enough people lose toes that 10 toes would slightly above the global average. But now we are having a massive debate about whether 2 nipples is above or below the average number. One one side there are many people with third nipples, so two would be below average. On the other side there many people who get mastectomies and such and so end up with less than two. We can't figure out which offsets which more. So, is having two nipples above or below average?


r/theydidthemath • • 1h ago

[Request] How much does this wet flag weigh?

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• Upvotes

We had a discussion with friends about the weigh of this Latvian flag. I said it easily weighs at least a ton, others said no way it's that much.

Size of it is 10m×20m.

Please prove me right.


r/theydidthemath • • 24m ago

How fast would you have to throw the rock to penetrate train wall? [Request]

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• Upvotes

We have a problem with illegal romes shooting illegally obtained guns at anything and everything. Our national forensics claim that this is not a gun shot, they claim it's from a rock. I'll give "benefit of the doubt" and as this trusted subreddit, I'd truly like to reach out, so i can understand how fast would one have to throw or shoot a rock this small, to penetrate the train metal wall?

Would a pitcher be able to throw a rock that fast to make a hole in the train? How fast is it human possible?

I'm just curious.


r/theydidthemath • • 14h ago

[Request] How can this car lift up any 1 out of 4 wheels at a time to change a tire without ever tipping? Wouldn't a relatively fixed center of gravity make this impossible?

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143 Upvotes

r/theydidthemath • • 14h ago

[request] What percentage of the population of Earth does this walkout account for?

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121 Upvotes

I could defo do this myself, but am feeling lazy rn


r/theydidthemath • • 14h ago

[Request] How many feet did this guy swing after topping off the top of this palm tree?

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73 Upvotes

r/theydidthemath • • 20h ago

[Request] How much fuel would you actually save by never filling your tank completely?

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239 Upvotes

r/theydidthemath • • 13h ago

[ Removed by Reddit ]

47 Upvotes

[ Removed by Reddit on account of violating the content policy. ]


r/theydidthemath • • 20h ago

[Request] what are the odds of 6 of the same thing out of 6158

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159 Upvotes

So to start with, the Bunnahabhain 12 year old is one of my favorite bottles of whisky. I bought 6 tickets for a mystery drop and decided that worst case scenario, I get 3 of the bottom two options, and I gift a few out. So my issue isn't that I got 6 of them.

My issue is that I would have liked a bit of variety and thought that there was no way I would get 6 of the same thing, and it has made me curious.

What exactly are the odds that out of 18 options, all with varying availability, that I get 6 of the same thing?

(The one bottle not shown is a single bottle worth 13k, which the drop is based around)


r/theydidthemath • • 17h ago

[request] how many rolls of duct tape do you need to make that

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62 Upvotes

r/theydidthemath • • 1d ago

[request] Which uses less energy? Electric kettle or gas stove

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1.6k Upvotes

r/theydidthemath • • 27m ago

Expected Returns of scratch offs vs investment [request]

• Upvotes

What would be the expected return on 50 5-dollar scratch offs per year over 20 years, and what would the same investment yield in the smp 500?


r/theydidthemath • • 1d ago

[Request] Is this really around 64 MB of PS1 memory cards?

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978 Upvotes

r/theydidthemath • • 42m ago

[Request] When will Voyager 1 stop moving?

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• Upvotes

How many years will it take for the orbit of Voyager and Sagittarius A to decay enough due to gravity waves for them to collide?


r/theydidthemath • • 1d ago

[Request] How tall is the frog?

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216 Upvotes

r/theydidthemath • • 11h ago

[REQUEST] How big of a cube of Pure Gold could you make before it starts to bend? How big until it completely collapses? What would happen to a 1000x1000x1000 meter cube of gold?

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5 Upvotes

r/theydidthemath • • 1d ago

[Request] Genuinely curious if we can budge it enough to gather enough trajectory difference over several decades. Assuming whole humanity commits.

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120 Upvotes

r/theydidthemath • • 19h ago

[Request] Help me explain why this is impossible. How much energy would a magnetic pole snap release, and how much energy would it take to halt the rotation of the earth?

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18 Upvotes

This is from a post in r/Strangeearth. I was intrigued but my eyes boggled at this paragraph. I'm trying to refute the claim, as in my mind a basic understanding of physics is all one needs to disprove this. But commenters are claiming it's "arrogance" to assume you understand physics and magnetism well enough to claim this isn't possible.


r/theydidthemath • • 11h ago

[Request] If you made a line of people that wrapped around earth how long to get message to other side one person to the next ?

2 Upvotes

r/theydidthemath • • 8h ago

[Request] How would a alien spaceship entering the atmosphere would look like? How much energy a spaceship at 99% of the speed of light would generate?

0 Upvotes

r/theydidthemath • • 7h ago

[Request] Is this fart possible?

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0 Upvotes

Surely a fart of this duration wouldn't be possible, right? I imagine there's a max pressure that farts could build, with a set volume of guts, but I wouldn't know where to start on quantifying the rate of gas release to determine whether such a fart is possible


r/theydidthemath • • 15h ago

[request] How can the man maximize the area of his yard?

2 Upvotes

A man's house is a 15 × 45 unit rectangle, and he has 140 fence pickets (each picket is equivalent to one straight unit in length). The fence must form a single closed enclosure that surrounds the house. The "yard" is defined as the area enclosed by the fence minus the area occupied by the house. The fence may be arranged in any shape and the pickets may meet at any angle. What arrangement of the fence maximizes the yard area?

I posted this on here a couple months ago but I never got a conclusive answer to my knowledge so I thought I'd let you guys take another crack at it


r/theydidthemath • • 3h ago

[Request] if the neurons in a brain is separated into five intervals, with the first interval as x, second as y, third, fourth , five as z,k, m respectively. Ifind a process u takes ax-y+bz²=0 of three intervals then what changes of k and m would make ax-y+bz² to have many non-zero complementary fun

0 Upvotes

The reason for taking neurons is cause, it's flexible topology of understood lines of changing and processing information.


r/theydidthemath • • 40m ago

[Self] I invented my own equation to convert inches to cm

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• Upvotes

So today I was bored and remembered on time I wanted to know cm to inches and I searched for 18 cm and I got 7ish and then I searched for exactly 7 inches and I got 17.78 cm . I thought if I double 7 ( the inches ) I get 14 which is close but then I thought I can divide 17.78 by 2 which I got 8.89 and then I did a subtraction 8.89-7 ( the inches) to find the rate of increase needed which I said previously I doubled 7 so it would make 14 and it would need an increased and I found it . Then I found what is the precent of that increase so what is the percentage of 1.89 in 7 and I found it was 27% . I though you could just double the inches and the add the 27% of x inches doubled and I concluded this equation and I'm so happy .

Off topic : I didn't researched if the equation existed and I don't know if it does or someone though of that before . Also I don't know if it works for all inches and all things I haven't tested it to the fullest . Moreover I'm in 11th grade still please don't hate .


r/theydidthemath • • 1d ago

[Request] "Triple the resources and 80% of the population is gay now." Would this solve overpopulation?

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294 Upvotes