@@KippGenerator don't need to be a mathematician to give such fast response, you just have to be a student preparing for entrance exam, I can do with the same speed, student from Pakistan, and I am sure JEE waly bhi isi speed se answer de sakty.
Unironically, I answered with the same speed as he did. I was also a math quiz bee national contestant during my teen years (I'm 33 now). This question is insanely easy compared to the actual difficult questions in math quiz bees.
the explanation done by the adult here made it difficult to understand for many people who fear MATHEMATICIANS. Here is a simpler way to answer: => 5•5^b = (625^b)/625 (here I combined the LHS to 5•5^b and converted the -1 part of 625^(b-1) to positive (i have heard negative numbers are spooky to many people) by bring it down) => 625•5 = (625^b)/5^b => 5^5 = 125^b => 5^5 = 5^3b => b = 5/3
The kid doesn't even finished the question here. He didn't solved it one by one but rather being familiar to all the equations and problems he had encountered, the kid memorized the derived form of the equation and operate the numbers base on the pattern
If you can't solve that problem in a few minutes, you should make the effort of refreshing your math skills. It doesn't use any advance math, every adult should master this. You just don't need to have it on speed dial.
That’s because the explanation is wrong. The kid went from 5^2 then add Then realized that wasn’t it then went to 5^3 add. That’s what I used and got it faster than the kid without realizing. I’m sure they have other techniques, but this definitely isn’t for speed lol
@@drivas166I don’t understand your explanation. Are you saying you did guess and check and that was faster? That doesn’t really make sense since the answer was a fraction, so you can’t quickly try so many values and add them up. The method in the video is pretty fast. He explains it slowly, but it can be done very fast if you’re used to algebra. I did the same thing, noticed 625 is 5^4, and there are 5 terms on the right. The problem quickly boils to b+1 = 4b-4 Can you reexplain what you did because I don’t get what you’re saying.
@@Kali-bs7ojI don’t know what the guy above is thinking, but it’s pretty easy to solve. 625 = 5^4 so 625 ^ (b-1) = 5 ^ (4b-4) and 5^b added 5 times is just 5 x 5^b or 5^(b+1) and so 5^(b+1) = 5^(4b-4) and you can now take log5 of both sides and get b+1=4b-4 or 3b = 5 and so b = 5/3. Really simple and can easily be done in your head. I’m actually surprised how long it took the kid to do it as I arrived at the answer before him, granted I am older than the kid and I would not want to compete against him in math in 15 years. Hope this helps.
@@epicmatter3512 yeah I know, I did the same thing. I’m just not getting what the guy above is talking about. The explanation is pretty on point to what anyone would do in this situation, just slowed down slightly
Ngl, It took me 10 seconds to get my answer. But, this boy did amazing . He definitely has meticulous understanding in maths. Moreover, the question was also extremely easy.
Perfectly said, I was also wondering why so many people were finding it difficult. It's just basic exponential knowledge and if you avoid pen-paper and try solving it in your mind, 6 to 7 seconds should be all you need. But compared to the age, the little boy in the video performed remarkably, no doubt.
This is a mental skill he practiced a lot. It is impressive, but doesn't mean he is is a genius. Before we had digital Computers, people where employed as "Computers" and calculated as a fulltime job. Pretty sure each and every one of them could've solved this in 0.1 seconds without having to be a genius. en.m.wikipedia.org/wiki/Computer_(occupation)
The kid is smart, but I think a lot of people are smart and, if they practiced as much as this kid did, they could probably do it in similar speed. But his dedication to math is definitely admirable.
take your time to digest the steps taken to get to the answer (it's a 60 second short so it's fine if it feels too fast to understand) everyone learns at their own pace and answers these problems at their own speed (it's a competition so it's gonna rely on speed)
It’s basic algebra. But it needs deeper knowledge of rules and insane practice. You have none, thus even this small sliver of math is hard for you. In just a few weeks though, you’d be able to solve this and much more with practice. Unless of course - you’re dumb ie IQ less than 100. Then it’s no use, believe me.
its like almost impossible that u wont understand it if u really listen to each step. u don't need to be good at math u just need a few mins of patience
@@MrRashidTVit's his skills, what gonna happen if this guys only game all day and skip classess,this genZ kids need only the fun and don't care of others 😕
i failed grade 12 math ( was asleep in class, even during testes. Although before that I was a pretty good student I usually averaged around 88% without studying ) but even i can understand what hes saying.
Yeah, like who cares? Einstein was a genius that invented highly complicated things and thought about things. Spelling bees and quick calculation is A LOT of training where you are recognizing patterns and familiar things. tbh it is impressive. I never will be able to do that quick thinking, but why should I? It is a USELESS skill. Like maybe 100 people in the world care. No one in the world will give you a monthly salary for solving those questions. There are online tools that are quicker and better.
What I learn from the reply above me is that people underestimate how hard what Einstein did was. His work was essentially a correction to Newton's work. Newton published his work 300 years before Einstein fixed it. It took 300 years for someone to fix it. Einstein's law now indicates to the existence of dark matter. Many consider dark matter to be a mistake in Einstein's law but we don't know how to fix it
@@AkshayLodha-ly1kg This is the problem you indians have. I DON'T CARE ABOUT YOUR SHIT JEE STUFF, if you are so educated why are y'all not even in the top 50 best engineering university or any institution?
@@arugula517 Yes really, i don’t have much education at all so math i forgot whatever i learned from 8 years in school as a child now I’m 47. And people think im smart which makes me uncomfortable in everyday life,lol
Yeah the impressive thing was his speed. I'm not sure why many people felt dumb after the guy explained basic math, or why this needed an explanation at all
@@ROVA00 the whole point is that i'm by no means one of the smarter people in my friend circle. let alone in comparison with how many smart people are in the world. This is simple, very basic math, and I take no pride in knowing how to do a simple math problem. I'm just baffled by how many people commend that they don't understand the math problem, and how liked the comments are
@@CounterStrikeLover10 the guy just explained the normal way to solve the question, i was expecting an alternative way to solve it. The kid is just insane
I was able to do it in my head in a about 10 seconds, but... ... I paused the video, so I had a 10 silent seconds to use. I seriously doubt, I could concentrate enough, to do it on a show, where the showmaster would keep talking.
that's how maths are taught in china, think in your head and give the answer, no need to lay down on paper the justification. in some way it can be helpful, but not what you are asked for in university though
Honestly I think more people can do this than we realize. Practice is really the detriment. Lots of quality practice among other supportive factors got this kid to this level.
I think he solved it in about 10 seconds. The reason I say this is because the question appears on their individual screens at the same time that guy starts reading the question out loud, basically, he's just reading to the audience. Still though, solving that question in 10 seconds is really something amazing.
You saying me that kid did all of this in his head in like 10 seconds, while i lost track of tw question even though you were explaining it in the slowest way possible 💀
Ya he for sure did, but skipped several steps. I’m not surprised that I solved it a bit quicker, but lil homie is like 12 years old answering it that fast. Kudos to Edward
they give them papers and a pencil in case they need to work the problems out. that's not taking away the fact that it's still very impressive and almost inhuman to do it THAT fast.
His explanation is just bad. Like, lets change T=5^b. When 5T=(T^4)/5^4 5^5=T^3 Reverse changer: 5^5=5^3b 5=3b b=5\3 Dunno about world, but in my country it taught at ~7-8 grade.
That is years and years of practice. I’ve been studying for a math test for a year now, at some point the steps become routine. It’s just a matter of recognizing the pattern, then plugging the numbers in. The downside is it ONLY applies to the problems you studied for. You’re still good at math, don’t get me wrong, but you won’t be quick in different topics and you will make mistakes, we’re all human at the end of the day.
People forget … it doesn’t matter how quickly you can solve a math question. You need to be able to apply this stuff, otherwise it’s all just mnemonic tricks and patterns
@@destroyer_of_frogs That’s not the point. Anyone who has that kind of mental capability, has the capability to perform way above average in anything even remotely related with that stuff.
Probably, the question was shown also in a screen where the competitors can see. Thus, solving the problem without finishing the question being provided verbally.
You’re probably right, the kids drill hundreds of these problems daily, it isn’t a stretch to say he’s seen a very similar problem if not the exact same problem before
If you specifically trained for it you'll already know what the mechanism it you'll roughly do the input and that's why they are so fast and that's impressive dedication
As a former math quiz bee finalist, I would say that it's because we memorized the powers of 2-9 up to the 9th power. It's obvious at first glance that 625 is 5^4, And 5^b 5 times is 5^(b+1). But seeing the relation between 5 and 625 would take about 1-2 seconds. A trained quizbee contestant can deduce those two simplification in 2 seconds. So it's merely b+1 = 4(b-1). It would then take about 2-3 seconds to get b=5/3. If course, thinking of this technique and writing stuff would add another 2-3 seconds. It took the kid 9 seconds.
