Number System | Quantitative Aptitude | Chapter - 1 | S Chand Academy

This video is prepared for doubt clarity covering all concepts with examples, making this topic easy to understand to students.
You will get exposure to how problems on this topic appear in government entrance exams like SSC, Banking, Railways etc. and ways to arrive at the correct answer quickly related to #Quant and #Mathematics part. Video contains both descriptive and short cut methods for solving questions.
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Пікірлер: 376

  • @AnushaAnu-rm5oj
    @AnushaAnu-rm5oj2 ай бұрын

    Y not solving the all questions we are beggners how can we understand 😢

  • @PavanManoj-rx9wx

    @PavanManoj-rx9wx

    2 ай бұрын

    Yess sir,we are beginners

  • @shaikismailshaikismail

    @shaikismailshaikismail

    Ай бұрын

    Im also same Beginner

  • @Sreejathanneeru

    @Sreejathanneeru

    Ай бұрын

    Yes ,sir

  • @gautambande9330

    @gautambande9330

    Ай бұрын

    Yes sir I am also beginner please suggest us easy way

  • @sagatamsukla2195

    @sagatamsukla2195

    29 күн бұрын

    Yes

  • @muhammadsaeed4868
    @muhammadsaeed4868 Жыл бұрын

    Great explanation sir. Kindly teach all the questions

  • @sharmadeepak1126

    @sharmadeepak1126

    3 ай бұрын

  • @bikrammisra9379
    @bikrammisra9379 Жыл бұрын

    Better teaching style and communication skill... Thank you sir

  • @schandacademy

    @schandacademy

    28 күн бұрын

    Thank you! Keep watching

  • @gauravpratapsingh8732
    @gauravpratapsingh87326 ай бұрын

    Sir in question no. 11 We can also use the Sum of n natural number formula from arithmetic Progression ?

  • @jaydwarkadhish7
    @jaydwarkadhish75 ай бұрын

    Hello sr in this question 11 new trick is available for example sum of (1 to 6) is equal to we have do that with 2nd trick for that first select first digit and last digit here 1+6=7 and multiply with total count of that number here 6 is total number is 6 and 6*7 is 42 and divide that number into 2.... 21 is the answer 1+2+3+4+5+6= 21

  • @nikunj9973
    @nikunj9973 Жыл бұрын

    Thank u sir but I want to know that what are the concepts based behind these small Tricks

  • @avniskuhuvideos7121
    @avniskuhuvideos71219 ай бұрын

    Great Explanation , Thank you sir 😊

  • @schandacademy

    @schandacademy

    28 күн бұрын

    Most Welcome! Keep watching

  • @ramchara045
    @ramchara0457 ай бұрын

    Very much thank u sir for conducting lecture through English....🙏

  • @schandacademy

    @schandacademy

    28 күн бұрын

    Most welcome! Keep watching

  • @Gamingzone-mn7vr
    @Gamingzone-mn7vr Жыл бұрын

    i bought new book s chanda quantitative aptitude best for all exam 😀🥳🥳🎉🎉💐🙏

  • @lg6944
    @lg69444 ай бұрын

    in que no 103 , short cut is - 2004 divide by 4 will get remainder 3 (say golu). and unit digit of given question (13) is 3 (say bholu to three). hence bholu to the power golu is twenty seven i.e. (3 to power 3 is 27 ) so unit digit is 7. therefore seven is answer..

  • @vsoumyasoumya9518
    @vsoumyasoumya9518 Жыл бұрын

    Thank you sir for your nice learning

  • @ABHISHEKGUPTA-vi8ks
    @ABHISHEKGUPTA-vi8ks Жыл бұрын

    Question 75 has a correction in the denominator, which should be 768 instead of 786. After this correction, the taught rule is applicable.

  • @taniya2001singh
    @taniya2001singh9 ай бұрын

    It would be great if he could have done whole the solved sums becz it helpd me alot to find multiple ways to solve

  • @samashtiadeel9945
    @samashtiadeel9945 Жыл бұрын

    Sir ! Can you please explain this example 👉🏻Page no. 10 ... Ex.16

  • @arpitsingh4490

    @arpitsingh4490

    11 ай бұрын

    Its difference method of find hcf ...here find difference between no and then hcf it becomes easy to get

  • @rashmikishore174
    @rashmikishore174 Жыл бұрын

    Sir..why did you skip ques no. 10?

  • @sridevi1355
    @sridevi1355 Жыл бұрын

    Sir i bought this book and i really liked ur explanation. Sir can you please tell the syllabus of quantiative ability of ipmat?

  • @Sumukh_rawat

    @Sumukh_rawat

    Жыл бұрын

    Same I am also preparing for ipmat 😇 best wishes

  • @himanshukandpal2636

    @himanshukandpal2636

    11 ай бұрын

    Best Book I had ever seen recently I qualified for one exam with the help of this book I recommend all people to watch and purchase this book it will help you to qualify for any exam.

  • @tequilla1432

    @tequilla1432

    7 ай бұрын

    @@himanshukandpal2636 arithmetic is included in this or not?

  • @anumfatima5169
    @anumfatima51692 жыл бұрын

    Why uh missed the 10 to 19 points and Factorial of a nmbr points any reason?

  • @wahidbhai3437
    @wahidbhai3437 Жыл бұрын

    Iam fully satisfied with your explanations this video help me alot thankyou sir

  • @schandacademy

    @schandacademy

    Жыл бұрын

    Glad to hear that Wahid. Best of Luck

  • @Gamingzone-mn7vr
    @Gamingzone-mn7vr Жыл бұрын

    sor ji please make a book for aptitude for agriculture students 😀

  • @gchandan
    @gchandan3 ай бұрын

    Best video on number system concept. Sir concept clear kr dea aapne ek dum. Thank you

  • @schandacademy

    @schandacademy

    3 ай бұрын

    Thank you!

  • @solankikanthubhavaghubha4929
    @solankikanthubhavaghubha492910 ай бұрын

    Great Explanation of concept, sir

  • @schandacademy

    @schandacademy

    28 күн бұрын

    Thank you! Keep watching

  • @jmusic5895
    @jmusic5895 Жыл бұрын

    I did not find out solutions of remaining solve topics,,,, you should have included each topics in videos,,,, In book we have some topics related with series in number system chapters,,,,, But no theory has been explained regarding that.

  • @_shashishrivastava_
    @_shashishrivastava_ Жыл бұрын

    can anyone tell me why didnt we subtracted 1 in case of 7 and 35 ,as we did it in case of 5 ,in ques 24??

  • @deathnoobgamer2460

    @deathnoobgamer2460

    Жыл бұрын

    Kyuki 1000 bhi 5 se divisible hai...humlogo ko less than 1000 chahiye according to question isiliye 1 subtract kiya ...aur 7,35 se 1000 divisible nhi hai isiliye uske case pe 1 subtract ni kiya

  • @Bhartiya_Indian_1
    @Bhartiya_Indian_1 Жыл бұрын

    Exceptionally great explanation 🤍

  • @schandacademy

    @schandacademy

    Жыл бұрын

    Thank you mcuch!

  • @Bromotologist
    @Bromotologist13 күн бұрын

    Very great of you sir to explain the basic concepts. Thank you so much sir for such a video, i hope this videos reaches everyone who is struggling with math basics.

  • @schandacademy

    @schandacademy

    6 күн бұрын

    Most welcome! Keep watching

  • @suhailmajeed6783
    @suhailmajeed678310 ай бұрын

    I am fully satisfied with your fantastic lecture...

  • @schandacademy

    @schandacademy

    4 ай бұрын

    Best of Luck!

  • @mohiuddinjeelanishaik1090
    @mohiuddinjeelanishaik10902 жыл бұрын

    It is factorial of a number

  • @ramcreations444
    @ramcreations444 Жыл бұрын

    In the question 75, the 768 is also written as 786. Doesn't one will be confused?

  • @afraimkhan6793

    @afraimkhan6793

    9 ай бұрын

    You are right man. There is a mistake

  • @user-pv2gs7th7y
    @user-pv2gs7th7y Жыл бұрын

    Very easy explanation and very well understanding thankyou so much sir ..

  • @schandacademy

    @schandacademy

    4 ай бұрын

    Thank you

  • @sonalinath7508
    @sonalinath7508 Жыл бұрын

    I need his contact number. Is he going to take online classes for verbal and non verbal reasoning.

  • @KeerthiKatkuri
    @KeerthiKatkuri4 ай бұрын

    Thank you soo much sir really very helpful for us❤❤

  • @eswarroy8093
    @eswarroy8093 Жыл бұрын

    it's really helpful sir ,thank you sir.

  • @schandacademy

    @schandacademy

    28 күн бұрын

    Most welcome! Keep watching

  • @Bromotologist
    @Bromotologist13 күн бұрын

    Thank you sir for explaining in english as it is a chance for students from other states to learn.

  • @schandacademy

    @schandacademy

    6 күн бұрын

    All the best! Keep watching and sharing

  • @nl9185
    @nl9185 Жыл бұрын

    Thank you for explaining in ENGLISH. Really appreciate it. God bless you.

  • @schandacademy

    @schandacademy

    Жыл бұрын

    So nice of you NL! Keep watching

  • @aletinarsimhareddy5513
    @aletinarsimhareddy55132 жыл бұрын

    I need an explanation for 10th question sir

  • @aswathimohan5695
    @aswathimohan56952 ай бұрын

    In question 24, shouldn't we subtract 28 twice? One to avoid double counting and one to remove answers divisible by 35. So shouldn't answer be 285?

  • @prajapatisuresh8013
    @prajapatisuresh8013 Жыл бұрын

    Very nice teaching method 👍🏻

  • @schandacademy

    @schandacademy

    28 күн бұрын

    Thank you! Keep watching

  • @chipstead7919
    @chipstead79192 жыл бұрын

    Kindly appoint teachers who know how to teach students..

  • @vijay7013
    @vijay7013 Жыл бұрын

    1 is composite number or prime number because it has only 1 factor

  • @ramgopaljallu5104
    @ramgopaljallu5104 Жыл бұрын

    sir small request teach all questions ....?

  • @jmusic5895
    @jmusic5895 Жыл бұрын

    Please explain whole chapters properly,,,,few parts have been explained very well.

  • @SiddarthaKumbajadala
    @SiddarthaKumbajadala15 күн бұрын

    can anyone tell me what are the topics to be prepared for the alp from this book 🙂

  • @user-km1ei9pm9q
    @user-km1ei9pm9q9 ай бұрын

    Sir please can you tell me how many topics of this book will be sufficient for mhcet law 5 years???? please 🙏

  • @SPSJ522
    @SPSJ522 Жыл бұрын

    Question 26 How x, x+2,x+4 will be 3 consecutive odd numbers... Put =0,2 or 4 then it becomes even . The correct expression should be 2n+1,2n+3,2n+5

  • @shubhankarmitra9119

    @shubhankarmitra9119

    Жыл бұрын

    hello brother here we consider x as an odd number and there is a prperty we all know that when we add even number to an odd number in that case the resulting no is an odd number for eg 1+2=3,3+6=9 and so on so it is correct

  • @imirfankhan2

    @imirfankhan2

    Жыл бұрын

    the question is about three consecutive odd numbers... and the smalest odd no. is 1 not zero.. i think u habe to study from a KG student he will teach u what is odd no. , what is even and what is whole no. Kaha say aatay hy ya loog. 🧐

  • @zentamuni

    @zentamuni

    Жыл бұрын

    @@imirfankhan2 Bro, he said for "whatever X is". He declared a variable without considering " 1 is the smallest odd number". It's okay if you lack the knowledge of variables. Let's not be disrespectful to each other.

  • @maverick_technology5285
    @maverick_technology5285 Жыл бұрын

    Sir is this book enough for cds

  • @DM12988
    @DM129882 жыл бұрын

    Sir, why did u skip qsn no. 19-23 ? I don't understand qsn no. 19 and 20 even after watching it's explanation... So kindly solve those problems also...

  • @nikitaranibehera7680

    @nikitaranibehera7680

    Жыл бұрын

    For 19 no formula is Greatest 3 digit no completely divisible by 4 minus smallest 3 digit no completely divisible by 4 diveded by 4 plus 1

  • @jaskipzracy6096

    @jaskipzracy6096

    Жыл бұрын

    There's a formula for that one 1/6n x (n+1) (2n+1).... Substitute 9 in place of n you'll get 1/6 x 9 x 10 x 19 gives you 90x19 divided by 6 you'll get your answer For question 20 you have to know the Roman numerals, it's a late middle age of writing number, like( ii is 2)( iii is 3) (v is 5) here M is 1000, D is 500, C is 100, L is 50 , then arrange the sequence from big to small like so M>D>C>L

  • @louisaccount3304
    @louisaccount33044 ай бұрын

    Respected sir. Which chapter in this text book is trigonometry.

  • @musicjesh
    @musicjesh2 жыл бұрын

    Thank you

  • @UditTandon-zq8xz
    @UditTandon-zq8xz4 ай бұрын

    Sir your best explanation ever

  • @venkyrocks4000
    @venkyrocks4000 Жыл бұрын

    Sir Explain more questions for each chapter

  • @thegameradi8266
    @thegameradi82662 ай бұрын

    Sir on question number 75 you have did a mistake on lower side you can see 786 is there so how could you cut that by which number please explain it

  • @nyc7968
    @nyc7968 Жыл бұрын

    sir in Question 94. how did you got to know that u have to take factorial of 6 only why not any other no ???

  • @pubgrealbattle8512

    @pubgrealbattle8512

    11 ай бұрын

    Because factorial 6 is common in every number

  • @ashakaushal2187
    @ashakaushal2187 Жыл бұрын

    Sar Ko question app leaf kiye Hain use kaise karen sar please tell me mein aapka bahut bada fan hu app bhout acha padhte Hain

  • @devendrasahu870
    @devendrasahu8706 ай бұрын

    Sir apki classes hindi bhasha me aati hai kya sir apki videos hindi Mee bhi hai kya

  • @Mr_Arun0807
    @Mr_Arun0807 Жыл бұрын

    Bro your explanation is like 1 question solving time whole exam time take so solve tricky solution

  • @ShaliniRao-tu2yc
    @ShaliniRao-tu2yc2 ай бұрын

    Better way of teaching and language 😊

  • @schandacademy

    @schandacademy

    2 ай бұрын

    Thank you!

  • @Mohityadav-pt1sy
    @Mohityadav-pt1sy2 ай бұрын

    Sir concept of finding unit digit is not mentioned in the book

  • @yashikakatyayan8456
    @yashikakatyayan84562 жыл бұрын

    Sir where is the concept of factorial of a number?

  • @siddharththakkar9834

    @siddharththakkar9834

    2 жыл бұрын

    N=n(n-1).....n-n 5!=5*4*3*2*1=120

  • @Soam222
    @Soam222 Жыл бұрын

    Where are the skipped solutions?😕😕

  • @dikshatiwari3050
    @dikshatiwari3050 Жыл бұрын

    Can you explain question no.3

  • @RajeshKumar-sj6qe
    @RajeshKumar-sj6qe Жыл бұрын

    Sir ye book NDA ke liye shi hai kya

  • @manasakodem4524
    @manasakodem45249 ай бұрын

    Online classes are there

  • @vaishnavisapkal6883
    @vaishnavisapkal6883 Жыл бұрын

    It's really a grate teaching sir😊

  • @schandacademy

    @schandacademy

    Жыл бұрын

    Keep watching Vaishanavi!

  • @shravyakoppala5113

    @shravyakoppala5113

    6 ай бұрын

    *great

  • @Shivamyadav-hs5uc
    @Shivamyadav-hs5uc Жыл бұрын

    Great sir 😊👍

  • @schandacademy

    @schandacademy

    Жыл бұрын

    Keep watching Shivam. Thank you

  • @mohiuddinjeelanishaik1090
    @mohiuddinjeelanishaik10902 жыл бұрын

    Sir ur missing the important questions

  • @user-qg1de6my3i
    @user-qg1de6my3i2 ай бұрын

    Sir you have given a help full information,but you didn't explain the divisibility rule of 7&13?? Can u explain plz😊

  • @kabbyo369
    @kabbyo369 Жыл бұрын

    75 number question mein 786 bola h, than how it can be a²?

  • @daminimehta9075
    @daminimehta9075Ай бұрын

    sir 26 number wale question mein sum of three odd consecutive numbers mein aapne x ke saath x+2 and x+4 kr diya ye toh even numbers ho gye na sir

  • @akshaypawar3616
    @akshaypawar3616 Жыл бұрын

    Great sir 😊

  • @schandacademy

    @schandacademy

    28 күн бұрын

    Thank you! Keep watching

  • @G.one.
    @G.one. Жыл бұрын

    শেখানোর জন্য ধন্যবাদ 🤠 আমার ৬০০ টাকা শোধ হয়ে গেল 🙃🙃

  • @soumenkarmakar8499
    @soumenkarmakar849910 күн бұрын

    Superb sir Basic is king

  • @schandacademy

    @schandacademy

    8 күн бұрын

    Thank you!

  • @rudrabhanunayak7343
    @rudrabhanunayak734311 ай бұрын

    Sir can it best for railway alp

  • @Adnanansari7056
    @Adnanansari7056 Жыл бұрын

    Sir I am satisfied with your education.

  • @schandacademy

    @schandacademy

    Жыл бұрын

    Thank You

  • @sachinchopra3756
    @sachinchopra37569 ай бұрын

    Nyc but our education system should be realistic so that jobs r given see every job especially govt are so tough thik hai thora diiffcut hona chiye lekin otna bhi na kro ki job mil hi na paye tbhi toh log youth asan kam krr rhe hai kya krna itna tension leker 🙏

  • @suhailmajeed6783
    @suhailmajeed678310 ай бұрын

    Fantastic vedio

  • @schandacademy

    @schandacademy

    28 күн бұрын

    Thank You! Keep watching

  • @PFEDITS0420
    @PFEDITS0420 Жыл бұрын

    Sir,24 question why u 200-1 in no division 5but not at all

  • @PFEDITS0420

    @PFEDITS0420

    Жыл бұрын

    Good

  • @monsvlog3761
    @monsvlog37612 жыл бұрын

    sir chapter wise video upload kariye please .... chapter 1 ke baad chapter 11 baki jo bich me chapter he

  • @schandacademy

    @schandacademy

    2 жыл бұрын

    HI, please check this playlist kzread.info/head/PL1zxEeUFe9lfDhh_Dewp5xHOnjLatGItQ . You will get all chapterwise videos from there.

  • @anjalisharma5062
    @anjalisharma50623 ай бұрын

    Sir please teach some techniques to solve the questions quickly i.e shortcut methods

  • @schandacademy

    @schandacademy

    Ай бұрын

    Thank you for your suggestion. We will share this feedback with the concerned team.

  • @namumaimuna6734
    @namumaimuna6734 Жыл бұрын

    Sir you are the best

  • @schandacademy

    @schandacademy

    28 күн бұрын

    Thank you! Keep watching

  • @MonaSharon-wx5kv
    @MonaSharon-wx5kv2 ай бұрын

    Sir in the 75th question the denominator is 786 and not 768 how can the 786 be a??

  • @jagannathpal1
    @jagannathpal1 Жыл бұрын

    Sir please can you explain in hindi/bengal language

  • @AD-qo9zu
    @AD-qo9zu2 жыл бұрын

    Thank you sir... explained very well 😄✨

  • @schandacademy

    @schandacademy

    2 жыл бұрын

    Thank You, subscribe S Chand Academy channel for more videos.

  • @satheesh3603
    @satheesh36039 ай бұрын

    Why are you not explaining all the questions in excercise...?

  • @Karan_9009
    @Karan_9009 Жыл бұрын

    Sir you can teach us in Hindi !

  • @staymotivate96
    @staymotivate962 жыл бұрын

    What is this sir explain with example

  • @nagarajubh4812
    @nagarajubh48122 жыл бұрын

    7 race to 95-3 race to 58 what is the unit number of this

  • @nagarajubh4812

    @nagarajubh4812

    2 жыл бұрын

    Plz solv it sir

  • @leelamanasaravinahalli4064
    @leelamanasaravinahalli40644 ай бұрын

    Sir what about pure maths concepts sir

  • @mohdnesharshah
    @mohdnesharshah Жыл бұрын

    It's really good explanation style.....sir😊

  • @schandacademy

    @schandacademy

    28 күн бұрын

    Thank you! Keep watching

  • @CADET_AGRIM_SHARMA
    @CADET_AGRIM_SHARMAАй бұрын

    Why didn't you explained factorial sir?🙏

  • @stp524
    @stp5245 ай бұрын

    Thank you sir it was helpful 🙏

  • @schandacademy

    @schandacademy

    5 ай бұрын

    Most welcome and keep wacthing more videos.

  • @SoumaPaul-pn7zd
    @SoumaPaul-pn7zd2 ай бұрын

    Sir, please explain 7 and 13 divisibility🙏🏻

  • @Siddiquiacademy
    @SiddiquiacademyАй бұрын

    Kon kon ye vedeo 2024 may dekh rahaa hay😂😂

  • @visnuvisalini819
    @visnuvisalini819Ай бұрын

    sir can you explain q.no103 how 13^2003=13^1000*3^3

  • @muneerahmed-9268
    @muneerahmed-9268 Жыл бұрын

    Sir aptitude ki series wise lectures of mathematics kese milenge.

  • @schandacademy

    @schandacademy

    11 ай бұрын

    kzread.info/head/PL1zxEeUFe9lfDhh_Dewp5xHOnjLatGItQ Keep watching!

  • @King-ib9uo
    @King-ib9uo2 жыл бұрын

    Thank you so much sir it helped me

  • @schandacademy

    @schandacademy

    2 жыл бұрын

    Most welcome!

  • @anshulagrawal1748

    @anshulagrawal1748

    2 жыл бұрын

    @@schandacademy kothari sir have expertise but unable to interact or tech students just reading and solving like a bookworm not explaining pls provide another mentor dear s chand.

  • @sahilpatra2517
    @sahilpatra2517 Жыл бұрын

    Hindi me bhi samjhao sir

  • @sabita2863
    @sabita2863 Жыл бұрын

    Thnku helpful

  • @schandacademy

    @schandacademy

    28 күн бұрын

    Thank you! Keep watching

  • @anumfatima5169
    @anumfatima51692 жыл бұрын

    If uh want to teach like this skipping so many things better don't sir😒

  • @poojasahu2238
    @poojasahu2238 Жыл бұрын

    Sir ques 4 6 wala bhi batao na

  • @ritusaniya678
    @ritusaniya6782 ай бұрын

    sir please complete all chapter and each and every question

  • @schandacademy

    @schandacademy

    Ай бұрын

    Thank you!