A simple "age problem" but...

[@bprpmathbasics]

3rd grade little brother's homework: kzbin.info/www/bejne/ppS7Yqh5nsh5ptEsi=apVykSTmvHkvs1SD

[@yamato2216]

There is literally a guy who bring time machine into this question

[@Ninja20704]

Smartasses will never not be annoying

[@Blitzkreig_2k8]

@@Ninja20704could be autistic

[@Tankem]

Foolishness has no bounds

[@chitlitlah]

I say it's slightly more than 62. If 4^x = 12, then 10^x ~ 62.

[@NikhileshSurve]

What if it's 90? 4×3=12, so 10×9=90? 😅

[@koenth2359]

Correct answer is 60, because 4×8-20=12, 10×8-20=60

[@motsuki7550]

@@koenth2359 you make me cry

[@koenth2359]

@@motsuki7550 😂

[@erenerbay]

No it's slightly less than 15,1 because 4=√16 , √(16+128)=√144=12 10=√100 , √(100+128)=√228≈15,1

[@IAmNotASandwich453]

I mean, I get why, from a purely mathematical standpoint, someone might say 30, but cmon, are people really that dumb 😂

[@richardl6751]

Yes.

[@slashroar]

The sad truth is, yes, people are really that dumb, and even more

[@happyhippo4664]

Yes, they are. Haven't you seen what goes on in the USA everyday?

[@kadelin3318]

I think it's kinda similar to when you read a word sntence right despite it being spelled wrong.

[@calamitalcomputers]

Purely mathematically, it can also be an arithmetic sequence with a common difference of 8, so you still get 10 to 18 and 4 to 12

[@LD-dt1sk]

I thought the question was “if a 4 year old is shooting an arrow at a 12 year old, how old is the person being shot by a 10 year old”

[@coolxplayer12]

😮 😂😂

[@cairongyang9400]

I couldn’t stop laughing

[@junpingqiu897]

Those people who answer 30 have no common sense.

[@Blox-Beam]

Its amazing that they can even read and do common math

[@Regularsshorts]

We don’t know whether they are at rest relative to each other. Relativistic effects could take place if even one of them were traveling near the speed of light

[@YouTube_username_not_found]

Everything is relative, one can consider that the one at rest is the one who is moving near the speed of light with respect to the other one. Now whose time is the one that should dialate?

[@Regularsshorts]

@ doesn’t matter the question is asking for the age difference

[@YouTube_username_not_found]

@@Regularsshorts Yeah, I know 😊. You brought up the relativistic version so I wanted to give my perspective about it, I wanted to highlight one of the biggest misconceptions about time dialation. Unfortunately I have no idea how to answer the question 😅 and clear up the misconception. Have a nice day/night.

[@Wolfsspinne]

When I was 10 my sister was 5. Today, some 30 years later, she still looks half my age. An argument can be made that it's proportional afterall.

[@CrisOnTheInternet]

Lol

[@Blox-Beam]

I am 17 and i looked much younger 1 year ago. I aged like 3 or 4 years in 1 year. So is age really proportional? Yeah it is proportional but body growth is not

[@no.4613]

Hate that captions are turned on automatically on your videos when I can understand you perfectly

[@AMVirtual-bx4di]

"911, what's your emergency?" "The Math ain't Mathing !" 😂

[@arkadeusz91]

At first I looked at the board and thought "Yeah, both answers are correct, why would 30 be wrong?". And then I read the original question in the description... I think that is the only way someone could not be able to solve it correctly. I mean I know pre-schoolers that could solve this...

[@daniel_77.]

Their birthdays might be different (example: person 1, 1 january; person 2 , 31 december). But even that, its still a difference of 1 year (if you count leap years)

[@tysjt]

It all depends on how you interpret the arrow and the stickman. If the arrow is passing of time and the stickman represents the same person, sure. But maybe this says a 4 year old stickman approches a 12 year old stickman what does this mean for 10 year old stickman approaching a stickman of unknown age? Jail.... It means jail.

[@bjornfeuerbacher5514]

The original question was given in the description below the video in text form. ("The question is if one person is 4 and the other person is 10, then how old is the second person when the first person turns 12?") So the interpretation of the arrows is clear.

[@LoneCat2137]

@@bjornfeuerbacher5514 boo, that's so boring, it was way more fun before that

[@TheMathManProfundities]

Older one could be 17 - 19 depending on their respective birthdays.

[@stokmlnes-flame2025]

some people condense the problem down into input and output to have a function to use for both but they then forget the context of the question. and some people are just confused

[@IsaacChoo88]

Those who thought the answer was 30, I implore you guys don't reproduce

[@fatallflaw87]

I NEED to know where you got that tree (Three) canvas. It hits both boxes of dad joke and math joke I have to have it.

[@psirrow]

Now I want a math problem like this: "Alice is 4 years old and Bob is 12 years old. The proportional difference between Alice's and Bob's ages is the same as the proportional difference between Alice's mother and Bob's grandfather. Bob's grandfather is 72 years old. How old is Alice's mother?"

[@wintutorials2282]

I think people who don’t like math but did have math in school get this wrong because they approach mathematical problems in a step-by-step manner. They think: which steps can solve this problem? Instead of: how does this problem work, what relations are at play? And this with a little intuition misdirection leads to many people answering 30 I think

[@CrisOnTheInternet]

Looks like people applied the rule of three for this one, but since 4 is not a proportion of 12, we can't applied.

[@lool8421]

could be 19 or 17 as well if 1st person is 4 years and 3 months old when the 2nd person is 10 years and 1 month old, after 7 years and 10 months, 1st person will be 12y1m old when the 2nd person will be 17y11m old

[@seanwilkinson7431]

Context of units, people.

[@PoppySuzumi1223]

I mean, when I first saw this, simply just addition is perfect, why multiplication?

[@Mauricekaip]

You see I saw the equation as a 4 year old is to a 12 year old as a 10 year old is to a X year old.

[@Its_my_plan]

Sir Some people thought that they were travelling at the speed of light, eventually they Answered 30😅

[@lolk6111]

wait his math problems are getting harder and harder

[@tomash9182]

There are obviously 2 solutions. If the 4 year-old was born February 29th, it's 42. If it's the 10 year-old, he's 12.

[@RichKeefe-w6c]

What happens if one was born on Feb 29th, and you assume that their age only increases on the aniversary of their birth?

[@ronaldking1054]

How much did AI enter the chat?

[@happyhippo4664]

You forgot the possible overtime for the 12 hour example.😀

[@TheSecondB-nn2vt]

I agree, the answer is $160 and 4 hours unpaid overtime....

[@LoneCat2137]

actually it could still be 30, because there isn't a specific question for this task. If the question was just "how old will the currently 10yo be when the 4yo turns 12", then sure, it's only 18. But because the question for this isn't specified, the task is just 4yo->12yo || 10yo->???, you could say 30 by looking at it as "what age will a 10yo be after living x current lifetimes, if a 4yo become 12yo after living x times their current lifetime"

[@LoneCat2137]

nevermind, the vid description just ruined this for me

[@SomeCowguy]

Ah so it's just wrong because I didn't read your description.

[@NoxMox]

Is this actually hard for some people, like what, did i forget to drink my stupid juice, what is this

[@anonymouscheesepie3768]

uh oh

[@joeschmo622]

Plot twist: the 4yo is travelling at relativistic speeds on his way to Alpha Centauri and only ages 1/3 as much as the 10yo.

[@douglas265]

threads? you don't have a twitter?

[@Maximo2204]

One is not better than the other in terms of how dumb most of their users can be

[@user-drinkwater]

If 4^x=12, then 10^x ≈ 62.0127870518. This would approximately be equal to 62 years, 4 days, 16 hours, 52 seconds and 465 milliseconds.

[@pk2712]

The four year old aged 8years to 12;so, in the 8 years that elapsed the 10 year old would be 18. Simple problem no other answer are acceptable.No need to watch a video to justify this answer.

[@robertpearce8394]

Missed the point.

[@pk2712]

@@robertpearce8394 No , I did not miss the point of the video . Watch the video again . For the age problem , he pointed out that the age problem boils down to a simple addition problem . Black Pen Red Pen is being kind ; but , he is basically saying that all the people using multiplication to solve the age problem are incorrect . I was stating the same thing more bluntly . When you continue to watch the video , he gives a different problem where multiplication is the correct avenue to the solution .

[@muhammadhussainsarhandi9928]

The answer "30 years old" is also possible by applying the laws of Physics, simply let him/her go at a significant percent of the light speed, and then according to time dilation effect, he/she can be 30 years old, Physics makes it work, afterall PHYSICS IS EVERYTHING

[@richardl6751]

If the four year old is traveling.

[@Ninja20704]

And how are we going to get someone to move at that speed? The amount of energy needed to get a person to move at even 10% the speed of light is several orders of magnitude above what is practical to provide. And that is also assuming the person survives and their body doesn’t just get ripped apart

[@m.h.6470]

If you just post the image without context, the question is ambiguous and HAS NO DEFINITIVE ANSWER. There are lots of ways to get from 4 to 12, each one could be used to get a different result for the requested value.

[@bjornfeuerbacher5514]

Yes, but he said that he posted this _with_ context, with a specific question.

[@m.h.6470]

@@bjornfeuerbacher5514 When and where did he say that? At the beginning of this video, he just said, that he posted THAT VIDEO (the part with him in front of the whiteboard pointing to the image), which has no context at all. And on the Threads post he showed was no context either. So where are you getting that he had posted context?

[@bjornfeuerbacher5514]

@@m.h.6470 "THAT VIDEO (the part with him in front of the whiteboard pointing to the image)" Ok, sorry, I misunderstood that part - I thought he meant the whole KZbin video.

[@anonymouscheesepie3768]

There are multiple functions f(x) that satisfy f(4) = 12. 1. f(x) = 3x f(4) = 12 so f(10) = 30 30 years old 2. f(x) = x + 8 f(4) = 12 f(10) = 18 18 years old There are many other functions that satisfy f(4) = 12: 1. f(x) = x^2 - 4 f(4) = 16 - 4 = 12 f(10) = 100 - 4 = 96 96 years old 2. f(x) = 12 f(4) = 12 f(10) = 12 12 years old 3. f(x) = 2x + 4 f(4) = 8 + 4 = 12 f(10) = 20 + 4 = 24 24 years old 4. f(x) = 4x - 4 f(4) = 12 f(10) = 36 And the list goes on... I don't like this question. You can't just claim an answer is right because of "common sense" just because the question is asked in terms of age. The relationship between a f(4) = 12 and f(10) = whatever can be literally anything. You can't just assume that the relation is x + 8 by adding context to a question where there is no context...