Fast Percentage Calculations in Mind!

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Garg University

7 жыл бұрын

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Пікірлер: 1 800

@adeshcharthad9233 7 жыл бұрын

I like the last sentence. " This is not a trick .. this is the way of looking at problems "..#changetheway

@hudasaeed2661 6 жыл бұрын

ADESH CHARTHAD

@babylearningandfuntv5727 6 жыл бұрын

Adesh. I like this.

@madhudeva9721 6 жыл бұрын

ADESH CHARTHAD s

@nujeecanlas 6 жыл бұрын

Top ten chess moves

@rattanverma3133 5 жыл бұрын

kzfaq.info/get/bejne/hd2ip6mFksyxcZ8.html

@Khalil.K 4 жыл бұрын

I have not practiced or touched it for long but today in a test i have had this problem, it took me too long to make the right answer and as i saw the title of this video it made me deeply interested the way it is taught is such a time saving trick. I like it, it is very good!!!!!!!

@jjiggyyy 3 жыл бұрын

This is so helpful. I was really worried today because tomorrow I have school, and we are doing percentages. I looked at every single video until I found this. My life has completely changed from this one video..I can't thank you enough God bless you. Thanks again!!

@HikingEngineer 3 жыл бұрын

lmao?

@shanehebert396 3 жыл бұрын

Also remember that 4% of 75 is the same as 75% of 4. The math behind this is easy... (4/100 * 75 = 4 * 75/100) through the commutative property of multiplication. So, you can "pick" the easiest way to do think about it.

@zudinz55 2 жыл бұрын

That’s what I was thinking as well. I accidentally worked out the % of opposite number, and the answer was same, I tried out with other numbers, % of both the numbers it was the same. So it’s better to work on which ever is easy to calculate. Thanks for the confirmation.,, now I am confident it works for real. hehe.. 👌😜😬

@hmsskkyy_xai Жыл бұрын

THATS SO COOL ty

@happyzin8627 Жыл бұрын

does it work for all the numbers

@shanehebert396 Жыл бұрын

@@happyzin8627 which numbers does it not work for?

@hmsskkyy_xai Жыл бұрын

@@happyzin8627 yup

@Valentinathevamp 6 жыл бұрын

Thank you. I needed a quick refresher. In about 10 secs it was all back. Thank you so much!

@saurin2 3 жыл бұрын

X% of Y is equal to Y% of X. For example 43% of 25 is equal to 25% of 43 which is very easy to calculate.

@AvirajSingh01 3 жыл бұрын

Ye Kya hai

@aqsashahzad4810 3 жыл бұрын

Doesn’t 4 * 2 = 8 then 3 * 2 = 6 so the answer would be 8.6 how is he getting 10.75 please explain

@aadilhussainbhat4446 3 жыл бұрын

xy=yx

@vivekpal368 Жыл бұрын

5 % of 10 is 0.5 and 10% of 5 is 0.5 ese

@adithyanm9621 Жыл бұрын

Wow

@PlanetC64 3 жыл бұрын

Nice visiting this land of smart people. I find this also a beautiful metaphor for breaking down problems. Just as you said. Kudos!

@laramie123 3 жыл бұрын

Not smart. Just that we spent a lot of time doing math in Indian schools :(

@lakshayjeetsaini7677 2 жыл бұрын

We are born with math calculations

@Suyash-soni 2 жыл бұрын

bahut problem me thi aap sayad maths me

@immoegreen200 3 жыл бұрын

Damn! Where were you 40 years ago when I needed you!!

@amberdanish8065 3 жыл бұрын

They must be learning by there self :)

@sanjaychittaluri3394 5 жыл бұрын

Still there another easiest method than this Example.:: 1.20% of 40 Just take a point from the end i. e. 4.0-->which is 10% of 40 Similarly 20 %of 40 =10% of 40+10%of 40=4+4=8... Example 2: 61% of 30 As said in the above example 1 Same... Take a point before the given last number.. i. e. 3.0 which is 10% of 30.. Now 60% of 30= 6×3.0=18 And to calculate 1% of 30.. We have to take a decimal point before the last two numbers.. ie..1% of 30=0.30 So 61% of 30=18+0.3=18.3 Example 3: 43 %of 25 10% of 25=2.5 1% of 25= 0.25 So here 40% of 25=4×2.5=10 3%of 25=3×0.25=0.75 43% of 25=10.75 Hope useful for someone...

@nurhaidalanggal1610 5 жыл бұрын

Thanks for the tricks, its truly helpful

@HA-wz3ep 5 жыл бұрын

Tanku ❤️

@sushovanmallick5595 5 жыл бұрын

This method is also very nice and easy to think

@faisalaslam3827 5 жыл бұрын

Thank You So Much Man

@madhuri1879 5 жыл бұрын

So easy. . . Ty

@siddharth.246 6 жыл бұрын

The key to this percentage calculation is to be good with percentage parts and fractions. 10% is 1/10th 5% is half of 1/10th i.e. 1/20th 20% is 2 * (1/10th) or 1/5th And lots and lots of practice + your multiplication / addition skills will come to play.

@ajaysharma7122 6 жыл бұрын

Nice

@johnvender 3 жыл бұрын

One of my favorites is the divisible by three trick, add up all the digits (and if it's still bit too large do it until it's not) and if that's divisible by three the number you started with is. Same with divisible by six but only for even numbers :)

@mydogskips2 2 жыл бұрын

What? Are you trying to explain how to determine whether a number is divisible by 3, and divisible by 6? Edit: I guess we are saying the same thing, I just didn't quite understand what you were saying when I first read your comment, hence my diatribe and lengthy response. I just want to be sure people get the right information. For 3, you cast out 3s, it's easier than summing all the digits and seeing whether it's divisible by 3. Example: 13569 You "cast out" that is scratch out/throw away, all numbers, or sums of numbers, that can be divided by 3. For 13569 you can just scratch out 3, we know it's divisible by 3, also, 6 and 9, they are divisible, then finally, 1 and 5, because together their sum, 6, is divisible by 3. this is easier than going 1+3+5+6+9 = 24 which then needs to be checked if it is divisible by 3. And while this number/example isn't too difficult, for a number like 123,456,789 adding up all the numbers may not be quite as easy, assuming you haven't memorized the sum of course. By casting out threes from 123,456,789, we can scratch out the 1 and 2 as they total 3, a multiple of 3(meaning it is divisible by 3), then the 3 of course, also 4 and 5 as they make 9 which is divisible by 3, followed by 6(clearly divisible by 3) then 7 and 8 (which make 15 and is divisible by/a multiple of 3), and finally 9, another multiple of 3. That means you scratched out all the numbers and therefore the whole number itself is divisible by 3. This is easier than adding up all the digits and dividing by 3, well, unless you memorized the fact that the sum of the numbers from 1 thru 9 is 45(which is divisible by three). If I scrambled up all the numbers like, 274,813,596, that's just 123,456,789 written with the numbers in a different order, it may not be so easy. The divisibility rule for 6 is easy, the number simply has to be divisible by both 2 and 3 to be divisible by 6. So yes, it has to be an even number(the definition of being divisible by 2) and also divisible by 3. So if you want to know if a number is divisible by 6, just check first if it is an even number, then make sure it is divisible by 3, if yes, the number is divisible by 6. And finally, by the way, if you are interested, since 123,456,789 is divisible by 3, we know that 274,813,596 is divisible by 3 given the rule. And if we want to know if 274,813,596 is divisible by 6, we check first if it is even, which it is, it ends with the number 6, thus making it an even number, then we see if it is divisible by 3, which it is as shown above, so as it is divisible by both 2 and 3, the number 274,813,596 itself is divisible by 6. 274,813,596 divided by 6 is equal to 45,802,266. P.S. If you are interested. To test whether a number is divisible by 4, just check the last two digits of the number, if it is divisible by 4, then the entirre number is divisible by 4. example: 50,124 Just check the last two digits, in this case 24, is it divisible by 4? Yes (24/4 = 6) So the number 50,124 itself is divisible by 4. To test whether a number is divisible by 8, just do the same thing, but with the last three digits(instead of the last two). example: 50,124 Check the last three digits, 124. Is 124 divisible by 8? No, 124/8 = 15 with a remainder of 4. So the number 50,124 is NOT divisible by 8 (even though it is divisible by both 2 and 4) And it also happens to be divisible by 2 and 3, so also 6, which makes it an interesting number which I picked at random. The divisibility rule for 7 is a bit complicated so I won't explain it here. And I'm sure you know the divisibility rule for 9 is the same as 3, just cast of 9s. And mind you, just because a number is divisible by 3 does NOT mean it is divisible by 9. Case in point, 15, divisible by 3, but NOT by 9, obviously. However, all numbers divisible by 9 ARE also divisible by 3 (as 9 is just a multiple of 3). I assume you already know the divisibility rules for 2, 5, and 10, they are really easy.

@dhanalakshmilakshmi6090 4 жыл бұрын

Wow amazing I liked this method of calculating percentage sir.

@pinoyako9830 3 жыл бұрын

I like the way how you use your common sense. Thanks! It would be a great help👍

@Praddyyy 3 жыл бұрын

This is extremely brilliant 💯

@anaghamurali6996 3 жыл бұрын

Short and comprehensive video. Thank you sir

@chattoacheem 5 жыл бұрын

If you are already good at math this is awesome. It works for me. Thanks

@muhammadsharif1718 Жыл бұрын

I usually find 20% of anything by simply dividing it by 5۔ )knowing that 20% is 1/5th) e۔g۔ 20% of 30 will be 30/5=6۔ Your method is very handy too۔

@jameypiano1885 7 жыл бұрын

wow. my life is forever changed. this rocks! 👍

@jaibalajim6774 2 жыл бұрын

Now what?

@annabellefagg3257 4 жыл бұрын

Thank you sir! This will help with the kent test

@Kreatee 5 жыл бұрын

Easier way: Example one: 40 degrees * 20 = 4*2= 8. Example 2: 22 of 30= 2.2*3= 6.6. Example 3: 61 of 30= 6.1*3= 18.3.

@erumfarid5207 4 жыл бұрын

Superb

@agustindiaz3348 3 жыл бұрын

I'm thinking that maybe this only works when one of the numbers has a 0 as a second digit, doesn't it?

@solarpanell3905 3 жыл бұрын

@@agustindiaz3348 it works all for numbers

@bhalchandrakote5072 Жыл бұрын

Hi bro

@ifieldsmarttechnologies6301 6 жыл бұрын

amazing.. way to learn and remember ..complex thing easyly

@Atapd 3 жыл бұрын

Amazingly awesome!

@iancooll 2 жыл бұрын

You helped re-jog my brain... thank god now i can continue my all nighter

@sinashi100 3 жыл бұрын

Wow! Thnx buddy i am waiting for these types of video

@mihirkumar2910 4 жыл бұрын

I really love the tricks.its very helpful

@dbsk06 5 жыл бұрын

this is actually the way ive always been doing it even before i started looking at shortcuts on youtube... it makes so much more sense than just mechanically calculating, which 99% of people won't be doing on a daily basis and it's better to be approximately right and perfectly wrong.

@claudiamiller7730 3 жыл бұрын

Me, too...my whole life, even before active schooling at age 7. Dam....thought I was some sort of smarty-pants......

@heathstjohn6775 5 жыл бұрын

Clear. No awful music. No stupid remarks. A digital Drawing Board. No gimicks. Thank you.

@lheong3333 2 жыл бұрын

Worth watching. Thank you so very much Sir🙏🙏🙏

@capano 7 жыл бұрын

Thanks for sharing this concept. Very interesting !

@sanjaysingh2612 3 жыл бұрын

Amazing session :) I learned a lot from Vidya Guru English videos as well. Most of the same questions I got in my exams.

@violincrazy91 2 жыл бұрын

This is very helpful, many thanks to Garg Unversity 👍😊

@TheNcmore 3 жыл бұрын

Use the immediately obvious facts that 10% of 45 = 4.5 and 1% of 45 = 0.45 to solve the problem. a) 30% of 45 = 3 x 4.5 = 13.5 b) leaves remainder of 4% to solve for: 4 x 0.45 = 1.80 c) add results of step a with step b = 13.5 + 1.8 = 15.3 This method is generally applicable and quick to solve for any integer percentages of another integer - and explaining out the algorithm takes far more time than the actual mental manipulations of finding the solution.

@cookwithreena1857 3 жыл бұрын

Thank You for the concept

@AliceInSquishyLand 6 жыл бұрын

Omg thanks so much!! Helped tons😄

@STDude 3 жыл бұрын

3:33 the math can be solved easily by interchange. 25 percent of 43 that means 1/4th of 43 aprox 10.7

@basalatabdulghaffar3547 6 жыл бұрын

Important and easy method and way of calculating percentage. Thanks to teacher who gave this important and interesting lecture.

@tushargupta4262 6 жыл бұрын

Thank You Sir.

@RowanSony 6 жыл бұрын

Thanks SOOOO much you helped me get 100% on my 7th Grade End of Term Test Thx

@sahilboro7043 4 жыл бұрын

Very helpful video Sir Thank you 🙏 I'm your new subscriber

@surbhichoudhary4686 2 жыл бұрын

This was so helpful.. Thank you ❣️

@mariafe7050 7 жыл бұрын

For example I say that 39% of 28 is 10.92 so just multiply the numbers by ignoring the percent and using "of" as "x" so 39 x 28 = 1,092 and divide 100 so 1,092 / 100 = 10.92 so boom you will always get the right answer if u use this method and works for ANY number but use it propely I USE THIS METHOD FOR MANY COMMON PERCENTAGE PROBLEMS

@jasmineopalwood8281 7 жыл бұрын

You could just do Ex: 48 of 30% = 48 x .30

@mariafe7050 7 жыл бұрын

Jasmine Opalwood Well I find my way easier bot that works too :)

@sriramac5113 7 жыл бұрын

maria fe u can do it in (40-1) way also

@Vivek-mi5hu 7 жыл бұрын

maria fe title is to do calculations in ur mind not on paper

@mariafe7050 7 жыл бұрын

Vivek Yes but I can also do multiplication calculations in my mind,

@phayze44 6 жыл бұрын

I just stumbled upon your channel. Great way to analyze concepts. Are there any books you would recommend?

@OptionTrader 6 жыл бұрын

www.amazon.com/MIND-MATH-Learn-Math-Fun-ebook/dp/B017QEIF18

@gurindersingh7744 4 жыл бұрын

Very easy and effective method sir. Thanks

@moushumipurkayastha2706 3 жыл бұрын

very informative and easy way to find the percentage of any number🙏🙏

@mohibullahkhan5514 5 жыл бұрын

sir, I do salute you for providing me an easiest method of calculating it. God bless u...

@vijayaLakshmi-xf2ty 6 жыл бұрын

Excellent teaching sir it is easy to understand

@jend8759 4 жыл бұрын

Very helpful! Thank you.

@RajuyCh-ug9ok 5 жыл бұрын

Thank you sir!!

@sonu4g540 5 жыл бұрын

Tq sooo much brother....do some more videos....very helpful 👍

@avinashverma2667 7 жыл бұрын

ye normal method h i m practicing it from my childhood once my fantastic sir told me to spilt calculation thats make it easy

@robertlee-nq6mg 7 жыл бұрын

Avinash Verma "fantastic sir" kya hota hai?

@puja431 7 жыл бұрын

If you know from "childhood" then why are you here anyway

@robertlee-nq6mg 7 жыл бұрын

Gauri_Puranik gauri ji, namaste...we like to refresh our knowledge.

@InfoBahawalpur 5 жыл бұрын

Oye bhae hum nae 3 sec main solve kar ha na kae minutes main. asye to her koe solve kr late ga .aya bada genius ki olad

@funcorner2265 2 жыл бұрын

Thank you so much for the wonderful video

@harshitmanhas6206 3 жыл бұрын

Thankyou.. For the marvelous concept.

@anwarh07 5 жыл бұрын

simply multiply 2 numbers up and put a decimal after 2 points

@abhisheknair2499 6 жыл бұрын

Thank you ✌

@MolenstyleCoUk Жыл бұрын

The easiest way is to multiply ur number; for example, 67 x 43 = 2881, and then divide your number, which will be 28.81 :) 67% of 43 = 28.81

@fliggityboo8687 4 жыл бұрын

This takes about 45 seconds if one thinks efficiently. Amazing how concise and prompt you were, allowing me to feel less stupid very rapidly, thank you.

@tenacioussoul3794 7 жыл бұрын

this is the same as enjoying my favorite anime only that its a sensational fascinating feeling in my mind and I love it

@D34dbox_21 5 жыл бұрын

This is so groundbreaking for me😂 thank you

@somusekhar6423 5 жыл бұрын

Thanks for giving this

@syedshahnawaz9399 4 жыл бұрын

Nice and easy without any tricks... Concept is very clear...

@clairsuyat8892 6 жыл бұрын

You're the real teacher sir! thanks for this. God bless you

@OptionTrader 5 жыл бұрын

Thanks

@warrishalodhi5761 3 жыл бұрын

You are a genius. What a creative mind

@toobaabdulqadir123 3 жыл бұрын

22% of 30 is very very amazing step this step clear my all concept or wesy bhi is way sy kisi bhi digits ki % nikali gay Wo bhtt easy tariqy se nikl aa rahi he thanku so much 😊

@AARAVPRADEEP 3 жыл бұрын

Thank you this helped me a lot 😀

@thebestofkashmir563 5 жыл бұрын

Thank you Sir!

@krishna-hindu 3 жыл бұрын

1%of every no×desired % is even more easy

@saikrishnachiru 3 жыл бұрын

It really helped me 😊 Thanks

@ziaurrahman-ts2wy 4 жыл бұрын

Thank U Sir! your explanation was too goooooood. ^_^

@SuperStargazer666 5 жыл бұрын

I love this!!

@whoisrockingthefloor418 3 жыл бұрын

🔥🔥🔥🙌🙌🙌 one of the best vid ever on YT ❤️❤️❤️

@MrAzamsamad 3 жыл бұрын

Great calculation.Thanks

@Arun97277 3 жыл бұрын

This is the best video on this topic so far!

@laramie123 3 жыл бұрын

Tears in my eyes!

@muqadusbhatrollnumber4570 4 жыл бұрын

Thnk u so much I just learned within a sec god bless you sir🌸

@ILuvvArt 3 жыл бұрын

Today i see this in my recommendations n thank you..i learnt a new way 🙏🏽

@shruuu1276 3 жыл бұрын

Me toooo🙌

@pramodepandit486 4 жыл бұрын

Well explained....great to see this video

@larvaml4439 Жыл бұрын

I found my own way of getting percentage of any number when I was having trouble calculating it For eg 9% and 24% of 93 So multiply the no. Put 2 decimal places before it like 93*0.09=8.37 and 93*0.24=22.32

@ayushis.5032 5 жыл бұрын

How I calculated 34% of 45 in 4 secs without seeing video and calculation: 3 parts of 45 = 15 3 parts of 100% = 33.33% If we take, 45=100% Then, 15=33.33% Automatically, answer will be somewhere around 15.3 *P.S I haven't see this video yet, just solved the question given in thumbnail by my own way to solve.*

@pruthvisabarad7899 7 жыл бұрын

thank you

@Rehmaan-qr4zr Жыл бұрын

My entry test is about to come in few days, hope it'll help

@Was_I_Here_before 5 жыл бұрын

This makes percentages ridiculously simple. My school never taught this method.

@thatbrowngirrll 7 жыл бұрын

great trick bro.. thnx for sharing

@arslanali6167 6 жыл бұрын

Miss Asmi hi

@crombuluted6577 7 жыл бұрын

oooooh i get it :)

@prabanchakmaamitabhomankoo2102 2 жыл бұрын

Ohh bhai bohut bohut dhanyawad...apka zindegi shub ho ...maa kasam calculate karna nehi araha tha ...apka video dek leya simple doubt clear ho giya.....🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏

@curiouscollectiblesAU 7 жыл бұрын

Misleading thumbnail, sir! I wanted to calculate answers in 3 seconds.

@laramie123 7 жыл бұрын

DaVinci: Do bit practice. I also looked at P90X and do not yet have 6 packs

@curiouscollectiblesAU 7 жыл бұрын

Garg University true. That's why we have notebooks full of arithmetic and scientific notation. Good luck on the abs 😂

@amitb5761 7 жыл бұрын

DaModern DaVinci come to me..

@syamsuperpogram5916 7 жыл бұрын

DaModern DaVinci

@jasper5016 7 жыл бұрын

With practice, you can do it in 2 seconds.

@dreamycrusades 6 жыл бұрын

Well, I would just like to add one thing ; that the answer for the problems in Just a number not a percentage. So one should not use the units percentage in the answer.

@augustinbarjo4780 3 жыл бұрын

Thanks sir for this wonderful video

@princeamar4363 3 жыл бұрын

Thank you brother

@victortellez4987 6 жыл бұрын

i love you man thank you.

@ishansahu5177 3 жыл бұрын

Thanks I was searching for it the whole day they gave me really weird methods I never thought it is so easy

@arsh6842 3 жыл бұрын

Best ever video literally 🤩 I have ever seen

@ashimdutta3069 5 жыл бұрын

Nice idea, thanks for sharing

@edvinantony8273 6 жыл бұрын

What a teacher u are! NOw i am doing in 2 seconds.....Thanks a lot

@jakublukac9348 5 жыл бұрын

I am addicted to your accent

@SAWESPORTS 5 жыл бұрын

I just knew that someone will fall for his voice 😂😂😂. The speaker is like gloomy voice

@Nao20244 2 жыл бұрын

The easier method to know if it is 8 or 0.8 or 80 etc would be taking out two zeros or putting decimal in second place counting from right as it will have to be always divided by 100 instead of thinking which number makes more sense

@neetabhat5316 Жыл бұрын

Yes, you precisely said it right. Even i commented on this. One can't be going on thinking whether or not the no. fits the slot!

@abhisheknag6689 5 жыл бұрын

Have not started watching the video. But I can do it like this... 33+ 1 % 45*1/3 +. 45 = 15.45

@rathnakarshenoy2786 3 жыл бұрын

Is it with in 3 seconds? 10% of 45 is 4.5 then for 30% is 13.5 Now calculate 4%=0.45x4= 1.8 ie 15.3 is the answer

@harryk1769 3 жыл бұрын

.34 x 45= 15.3

@Spaghettineck 2 ай бұрын

The best way to do it

@dr.doeslittle4957 6 жыл бұрын

This is actually simple. 34% of 45... 1% of 45 is .45... 10% of 45 is 4.5. Knowing this 3×4.5+.45×4...

@letsbehonest5084 5 жыл бұрын

I hate you

@Boomclack 5 жыл бұрын

I got 15.3 in about 5 seconds. I guess people get flustered when they dont break numbers down like we do. Makes it so much easier when all problems just end up being addition, in the end.

@gamingemail8763 5 жыл бұрын

Why r u adding

@Boomclack 5 жыл бұрын

Gaming Email because I break numbers down to their factors of 10, then do any calculations I need to do, AND THEN add the two sums together. Ex: 29 x 63 = 20 x 63 = 1260 + 9 x 60 + 9 x 3, or 540 + 27 as it were. So we end up with 1260+567=1827

@mrbrucewayne631 5 жыл бұрын

=15.3 although it took me more than 3 seconds

@ezekieldominiquintal7556 5 жыл бұрын

34% × 45 45.0+5.0 = 50 | 5 = 50 × 0.1 34 × 50% = 17.0 17-1.7 = 15.3 This is how I do it in my head. I just keep moving things around and turn it into multiple simpler equations. With enough practice, you'll solve this almost instantly. Once you realized the patter of numbers, you'll just guess/estimate and it will most likely be correct. Hahaha. Somehow, it's like magic.

@LucasKsh 5 жыл бұрын

same but instead of doing negative i tend to do positive as adding is quicker

@LucasKsh 5 жыл бұрын

13.6 + 1.7