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Factorials 2 || Number Systems || Quantitative Aptitude || CAT Preparation 2024

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Number System by Ravi Prakash | Quantitative Aptitude for CAT 2024
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Комментарии : 341

@nitinparashar8977 5 лет назад

Fantastic last question .. such questions and concepts are never taught in our coaching institutes after paying 40k .. and Sir your way of explaining such tough concepts.. brilliant Sir.. from today, I will be regularly following your channel.. have high expectations seeing such quality

@Rodha 5 лет назад

Please share among your friends as well.. full course will be available here by 2nd week of may

@rishisrivastava5461 5 лет назад

bro i have been following his channel after being disappointed from T.I.M.E lucknow

@vibhishnagul 5 лет назад

Extremely good question but I don't know if such questions came for rbi grade b Please reply

@pramodkumar-oc2xn 4 года назад

In 3rd question why sir taken 7 as common and why we have to see lhs equal rhs can u explain

@akshatmishra885 4 года назад

@@rishisrivastava5461 i am going to join time lucknow .....please share your experience bro

@cringenot6945 4 года назад

For those who are not able to view this video, try setting the video quality to 360p

@subburajp1946 4 года назад

Thank you

@barkhaverma139 4 года назад

Thank you!

@ashishphilipthomas 4 года назад

Thank you

@Arch4ngel670 4 года назад

Thanks it worked

@morningstar2728 4 года назад

Thanks Alot!

@harshilsaluja792 4 года назад

this channel is much better than the coaching institutions which take money and barely give any knowledge......i enrolled in career launcher ...and that has been the worst experience ..!!better to sit at home and give time to such quality content..!! kudos to you sir....!!

@anilbhai1652 4 года назад

Where are you from bro ?

@sayandeysarkar3354 3 года назад

Even I launched in Career Launcher-but here it is much much better

@dibyendubanerjee1053 4 года назад

What a concept. I learn something new when i see your videos. The style of teaching is excellent. Thanks a lot for giving this quality of content in free of cost. Salute to you

@mad9777 4 года назад

Hey I totally solved that 153 question on my own. Thankyou sir😁

@v.g.r4583 Год назад

Hi ,

@harshbisht5605 24 дня назад

🎉@@v.g.r4583

@himanshumaurya7317 Год назад

I watched last concept about 3 to 4 times.... Then I understood whats happen... Brilliant concept sir...... Thank god we have teacher like you... Student from praygraj.... 🙏🙏🙏🙏

@rhutvigawai5672 3 года назад

Sir, seriously I am able to understand the concepts and the way you teach amazing...God bless you Sir.

@Tuuuuusssjjjjjjnrnfnnfnfn Год назад

sir hats off to u... i come from a financially weak background and cant afford paid coaching but here your concepts are so superb that even paid coaching institutes bhi nahi padate. thank u so much sir. aap khoob tarakki karo sir, plz don't stop making videos on yt. usi same type ki vidos daal dia karo sir jo aap unacademy par padate ho plzz

@gamingwithaj4857 2 года назад

I’m here to prepare for ipmat 2022 and thanks to one of my friends recommendation I got to find your channel It helps me a lot as I’m not good with maths but Ravi sir you make it seem easy even for us students who didn’t opt for maths in their 11th and 12th thanks a lot sir and keep helping us students who don’t have the money to spend on crash course or coaching 👏

@ankitwatts1918 2 года назад

11 and 12 math yeh sb nahi padhna hai

@shivanshpatel_784 3 года назад

One of the best Conceptual Question !! Got to say and hats off to sir for explaining it so easily

@urjaparmar3265 3 года назад

Quality Course! Simply outstanding. Thank you so much, sir.

@mridultripathi4624 4 года назад

The lectures are amazing sir . I am going through each one of them . Thanks a lot for creating such a series. I have already spent so much on institutes but never have gotten explained better.

@aswinkumark7198 3 года назад

In the last question, it is given that k or k+1 or k+2 trailing zeros. we took the situation of 3 consecutive trailing zeroes are skipped. if it is the situation, then the question must have 'AND' instead of 'OR'. As per given question, answer will be k=3, since first skipping is done @25! and among (k,k+1,K+2 ) K+2 carries min value of K. p

@adwaitranjith5240 4 месяца назад

i had the same doubt but k is supposed to be 5 not 3

@jayguruprasadkanitkar9861 19 дней назад

Thank You so much sir..... I solved the question of a = 402 on my own... this is first time because of your teaching I solved such a confusing question!!!!!!!!! Feeling good now

@gouravnagar2174 10 месяцев назад

Thank you so much sir ❤ Many youTubers are teaching a simple question and a simple concept for fascinating us.. Your the teacher who work for the real concept which will help us a lot 🙏🙏

@sidsiva3073 2 года назад

how do we initiate breaking down 504 into 7x8x9 ? how do you come to that way of solving ?

@IshanonWeb 6 месяцев назад

Breakdown 504 in prime numbers... divide 504 simply with 2 then 3 and then lastly by 7.

@user-rf2mw9tf9b 6 месяцев назад

Didn't get it @@IshanonWeb

@15_samirparihar6 Год назад

Got to know about your channel from Shweta Arora you both are really doing a really great job hatts off to you both🤗

@Shruti_mantry Месяц назад

Hii kya apke sare rodha RU-vid lecture ke notes hai kya please send me

@vyshnavisrirangam1121 3 года назад

Tq so much for ur teaching at free cost salute to you for giving this much knowledge

@sushrutsakharkar 2 года назад

EVERYTHING IS EXTREMELY PERFECT SIR.....BUT PLS FIX THE AUDIO SIR .......ITS VERY LOW AND HENCE INAUDIBLE

@akshayasr245 Год назад

THANKS A LOT, AND TONS SIR!!! FOR STUDENTS LIKE US, YOU REALLY MAKE EVERYTHING SIMPLE AND FACILITATE IN SMOOTH JOURNEY TO SUCCESS......WORDS AREN'T ENOUGH TO APPRECIATE YOU....THANKS AGAIN AND AGAIN🙏🙏🙏🙏🙏🙏

@vaibhavtomar1570 Год назад

The style of teaching is excellent. Thanks a lot for giving this quality of content in free of cost.

@kevinbhimani4433 Год назад

Sir you are real gem, because your way of teaching is absolutely super......and your questions are also high quality level.... And way of teaching is also.....i pray MA SARASVATI blessings always be with you.🌸

@prasmitpadhy 4 года назад

Thank you so much for the coaching, Sir. I swear you'll become famous like Alakh Pandey for free coaching one day.

@surabhigoyal6483 5 лет назад

Sir ur lessons are brilliant and so simple to understand and ur way of teaching is awesome Thanks a lot sir for these videos

@rajeswarisahoo157 4 года назад

Guys who are facing problem in opening the video....do one thing i.e. download the video and the video would be easily opened...Later thanks me 🙂

@rishabgupta3419 3 года назад

Amazing concepts taught beautifully. Great explanation!!

@praveenrajputt 4 года назад

Sir this video is not play... Check this internal error of this video.

@tharunvambaravelli8780 4 года назад

Same problem

@PradeepSingh-ok8zh 4 года назад

Download and watch.

@burhanhajee5771 4 года назад

Try in 360 p

@milanrai1556 4 года назад

not working

@daddydoosh8702 3 года назад

Tu toh studd hai re!!!

@TheTani200 2 года назад

Very grateful to you for simplifying a seemingly tough looking concept

@od05csgo97 5 лет назад

sir highest power of any even no. must be the highest power of the largest prime right (means after its factorization) ?? so directly we can also write that power of 12 here should be 36? i tried it in 150! and power of 12 was right using this method means directly.? please correct me if i am wrong or will there be any ambiguity in future..

@vanshikaverma5268 22 дня назад

In k trailing zeros question 31:40 it was not mentioned about how many digits trailing zeros we are talking about . Why took x+4? And not x+3 concept and so on ?

@anchal9510 Год назад

Why his voice is so loww???

@EverythingLatestForYou1 Год назад

The question for finding min K , has OR condition not AND , which means only one condition is enough to take into consideration right?

@vinaygoel778 5 лет назад

brilliant methodology . literally started from basics to pinnacle seems to be very helpful........

@akshatmishra885 4 года назад

13:48 its magic

@RiyaSingh-zt4rr 4 года назад

Are these lectures are also useful for next coming year CAT exams??? like 2021 ,2022......because i dont know wheather it is right or not every year most of the syllabus used to change ??

@debangshudeb9778 4 года назад

Syllabud dont change mark distribution change

@ediganagapradeepkumar3472 6 месяцев назад

the last question be like really too tough...for my standard. it took nearly half an hour to understand the question but i understand. thankyou sir making beautiful cat content for free.

@shivambhardwaj6050 2 года назад

Sir i did last question by myself and it was correct

@namansharma2721 9 месяцев назад

Thank You sir. God bless you for doing such a Great and Nobel work. 🙏🙏🙏

@ishanmadhav8261 Год назад

Very helpful video.Thanks a lot sir I am in bba 1st year and I its my initial preparation and your video is helping me alot

@madhuridevireddy1514 4 года назад

the lectures are just awesome sir..keep posting sir..

@anonymous-6716 4 года назад

For those who are not able to play this video you may also download this video.

@VarunKumar-jv4xt 3 года назад

You can also see at 360 p

@thakurkunal992 4 года назад

Why we break 504 in 7×8×9. 8 and 9 is not even a prime number. Please reply, If anyone knows🌸

@srikrishnavasudev9735 4 года назад

It doesn't matter whether we write directly 8 and 9 or in terms of 2 and 3, as we are only concerned about the power of 7 in the question( both 8 and 9 are not a multiple of 7). You can write in terms of 2 and 3 if u find it comfortable.

@srikrishnavasudev9735 4 года назад

@Meghna Chaturvedi I didn't really get ur question. Power of two in what, 504 or in 2419 factorial? If it's the former then it is simply 2^3 and for the factorial part use the same method that was taught to calculate highest power of a prime number in a factorial.

@joelthomas9945 2 года назад

@@srikrishnavasudev9735 could u explain how we broke 504 into those nummbers?

@sidsiva3073 2 года назад

I have the same question. how does he directly break down 504 into 7x8x9 ?

@chhavitarak 2 года назад

@@sidsiva3073 504 =7 × 72 (we started from 7 becoz its a prime no. ,yes 2and 3 are also prime but lesser the no. Will be more power it give so ..to make easy we take 7 ) Now split 72 504=7× 3 × 24 Splitting 24 as 3×8 = 7×3×3×8 Now 504 = 7 ×3² × 2³ Which is 7×9×8

@anuragganguly449 4 года назад

Sir, this video is not playing properly. There might be some internal disruptions. Sir, kindly please re- upload the video so that we can enjoy learning factorials as sir your videos are absolutely fantastic for someone to learn mathematics from scratch to zenith. The way of your teaching is very simple and absolutely commendable. Sir, you are the best Mathematics teacher I have ever seen in my 20 years of life. Sir, I hope you will address the problem I am facing currently and re- upload the video as soon as possible. Thank you Sir.

@adeshpatil4792 4 года назад

play it on 360p man

@jayateerthad4965 4 года назад

@@adeshpatil4792 not working oj 360p also

@adeshpatil4792 4 года назад

@@jayateerthad4965 working in my phone

@Ammathovyshu 4 года назад

Sir can u plz re upload the video We may miss imp concepts from this Plz sirrr

@shauryagupta888 3 года назад

wow sir..... really a gem u are

@tasleemsaifi5711 3 года назад

Sir I m not getting how we break down 504 in 7*8*9

@joelthomas9945 2 года назад

same :(

@chhavitarak 2 года назад

504 =7 × 72 (we started from 7 becoz its a prime no. ,yes 2and 3 are also prime but lesser the no. Will be more power it give so ..to make easy we take 7 ) Now split 72 504=7× 3 × 24 Splitting 24 as 3×8 = 7×3×3×8 Now 504 = 7 ×3² × 2³ Which is 7×9×8

@binaytiwari5042 4 года назад

Find the maximum value of n such that 77! is perfectly divisible by 720^n. Confused whether the answer is 17or 18,since highest power of 5is coming 18.but the answer is 17

@kashishkukreja5904 4 года назад

It will be 17 only as 3^35 can be written as (3^2)^17 only max rest one 3 is of no use thus we can only take 17 from each 2 and 5 as well

@deblinatalukdar2928 2 года назад

In the question, find the highest power of 12 in 80!, why is the power of 4 coming as 39 (4^39) but power of 3 as 36 (3^36). Shouldn't power of 4 be less than that of 3 since 4>3. Or is the rule true only for prime numbers?

@ravitiwari6079 2 года назад

Only for prime numbers

@mukeshsoni1327 8 дней назад

it's 26 not 36

@MillandeepSingh 23 дня назад

i someone reads it can you explain how we know after which zeroes will increase i mean i get the point that after 25 zeroes increase by 2 then how on 50 again zeroes jump by 2 again i am not able to get that part where sir said zeroes will skip by multiple of 5 according to that for 25 and 50 i get then why zeroes are not increasing for 100 as well why 125 and after 125 why 652 why not 250?

@HaRRRy24 7 дней назад

same doubt

@Saikat_Ray_07 Год назад

Sir Please create a Quants Playlist with all exquisite questions and topics for CAT 2023. Please kindly help us out.

@poojadwivedi8064 4 года назад

Ye video nhi CHL rhi hai kaise is video Ko dekhu

@vainshakshita8613 Год назад

Hello sir, currently i am working as AA in IIMA but i want to get admision on phD at iima nd for that i am preparing for CAT .....In starting i was lil hasitate what to do and how to do ...but make it very easy to study.....thank u so much....for all the 3 portion i am following ur lectures.

@glekha4397 3 года назад

Actually in the question of highest power of 12 in 80!, the highest power of 3 is not 36 as 8*3= 24 and not 26.

@ubaid865 2 года назад

Wdym

@ubaid865 2 года назад

It is correct right?

@saumitragautam8333 3 года назад

Thanks a lot.

@devashish199 Год назад

Thank You Sir! for giving this knowledge Free of Cost ! I want to do MBA but Dont have fees

@Shruti_mantry Месяц назад

Hii kya apke sare rodha RU-vid lecture ke notes hai kya please send me

@Shruti_mantry Месяц назад

Hii kya apke sare rodha RU-vid lecture ke notes hai kya please send me

@soundharyadhanapal24 3 месяца назад

Sir why the zeros were not skipped at 75 and 100 . These also multiple of 25

@SayanBlog 3 месяца назад

0s are skipped at 5 25 125 625 and so on basically multiple of 5 numbers 1-4 ....no zero 5-9 .....1 zero 10-14 ....2 zero Increment of +1 Again after 25 increment of +2 After 125 +3 And so on

@jyothika532 3 месяца назад

@@SayanBlog 625 >x+4 1250 is again a+4 How is this possible??

@aswindahal7080 2 месяца назад

What happens is from 25 to 124, at every multiple of 25 2 0s are skipped and then from 125 to 625, at every mul of 25, 3 0s are skipped. So 0s are skipped at 75 and 100

@ananyabhargava3966 2 года назад

Amazing concepts sir 🙏🙏

@vaishalisingh499 4 года назад

#Rodha....Sir you teach really well!!!! Sir I want to ask you that is this course helpful in preparation for IPMAT for indore??????

@Tanjirosan7 3 года назад

In 1st question 2² power is 39 and 3 power is 36....in last lecture u said take power of the bigger number.... isn't 2² bigger than 3?

@buttercup97255p 2 года назад

same doubt

@chhavitarak 2 года назад

@@buttercup97255p see it's said there that...when 80 is divided by 2 ..it give 78 ... And we splitted 12 as 2²×3 Means 4×3 So 2=78 will be written in form of 2² as we want 4×3 2²= 2³⁹ 4 = 72 power ...so variable a and b = 4& 3 4³⁹ and 3³⁶ So 36 pairs And we follow the higher the no. Will be ...lesser the power it will have Which clearly give 4³⁹ and 3 ³⁶ And to find pairs only minimum power among prime no. Are taken I hope this helped

@PradeepSingh-ok8zh 4 года назад

If facing problem while playing the video then download and watch.

@GouravJChoudhary Месяц назад

I have question should i prepare with writing formulas or just understanding concept is enough?

@sahilshreshtha7156 7 месяцев назад

Hello sir, for last question can it be concluded that "if x consecutive trailing zeroes are skipped from the 5's of factorial of a number, then the index of 5 in that number will be x+1".

@madhuridevireddy1514 4 года назад

sir where can i get more questions for practice ????

@shwetadutta1214 2 года назад

sir , i have a question here, in the previous video u said that during non-prime numbers , we have to first take out the highes magnitude of prime factor which in case of 12 is 3(2 multiplied by 3), then whhy did you multiplied 60by 2?

@praptigoel4296 2 месяца назад

Thank u sir 😊

@krishnaveni4426 3 года назад

Really thank u so much sir, from the core..

@jyotisingh4861 4 года назад

Thankyou so much rodha classes

@himanshusharma-eu8lj 2 года назад

With your video which book should i purchase

@tharunvambaravelli8780 4 года назад

22:25

@sadasivamsubramoniam5832 2 года назад

Thank you very much sir for your efforts

@crifoobb Месяц назад

I didn't understand why is no of 7s in LHS=no of 7s in RHS in Q3 13:00 , someone help me with this

@anupamsharma8054 5 лет назад

Nice

@archisrivastava485 3 года назад

sir i did this question (where we have to find the value of a) by dividing into prime no.s as told by u earlier.

@shivanibhadoria1049 4 года назад

In q3 why did you take 7*8*9 only?

@priyankakolait3127 4 года назад

There's some issue with this video, kindly upload it again.

@pallav7593 4 года назад

Try playing it in 360p or 720p.

@NeerajSinghB04 Месяц назад

Highest value of 'k' will be ?

@arunmishra3691 3 года назад

nice questions!!

@Gautam_OG 2 года назад

4:00 6:00 13:00 23:00 32:00

@pacificspidey7759 4 года назад

Sir there's an error pls check

@zoro3188 2 года назад

Better than time

@Mogambo1328 2 года назад

Right 👍👍👍

@ManuSrivastava_ 2 года назад

Thank you so much sir.❤❤

@cumulusmusic100 11 месяцев назад

Thank you Sir 🙏

@ashifahmd7119 2 года назад

In question 3 the no of 7's will be more than 8 and 9. How can we take index 402, it should be less than 402?

@arya8769 Год назад

What will be the maximum value for k for which no of factorial has k trailing zero or k+1 or k+2 trailing zeroes

@shrushtikumbhar358 11 месяцев назад

Thank you sir

@Enjoy-dt8pk 2 года назад

Sir why you take the value of k is 153, k+1 =154 k+2 = 153 Sir how you choose these numbers ....??????

@ayushhhsharmaa 8 месяцев назад

THE BEST

@mukeshsoni1327 8 дней назад

can anyone explain me the last question why 124,125 taken

@trendingshorts8092 Год назад

osm content

@vins686 4 года назад

Thank you

@pankajchadda1780 Год назад

Thank you sir 😀

@vigneshm2100 3 года назад

In Question 3 !! 2419! why we calculate only the no of 7's ??? confused

@kamalkishorebajaj143 3 года назад

because 8 and 9 can further split into 4*2 and 3*3. 7 on the other hand cannot. And if you go through the previous lecture he showed us that we need to only find the power of the largest prime number in the pair, Cause it indicates the max number of pairs we can get for a factorial. In this question 7 is the largest prime number and 7 's power indicates the max number of pairs we can get for (8*9*7) which is 402. And 402=a which is the answer. Sorry Im bad at explaining, Hope this makes some sense to you.

@srinayan390 9 месяцев назад

superb

@sameerkundu6038 5 лет назад

Amazing

@afiakhanam5910 3 года назад

Please do something with this video clip it's just not working properly

@sidsiva3073 2 года назад

In the last question, factorial of 1250 is 312 trailing zeroes & factorial of 1249 has 306 trailing zeroes. Six factorials have been missed. k,k+1,k+2,k+3,k+4,k+5,k+6. In the video you explained only 4 trailing zeroes will be missed ?