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

[@Siddiquiacademy]

Kon kon ye vedeo 2024 may dekh rahaa hay😂😂

[@ramchara045]

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

[@schandacademy]

Most welcome! Keep watching

[@gchandan]

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

[@schandacademy]

Thank you!

[@fazal3933]

@@schandacademy ​ Sir for question 24. the answer will be 285.. Because Number which are divisible by 5 or 7 are 313 but we need to exclude number divisible by 35 . We only want the numbers divisible by 5 or 7 but not by 35. So, we subtract the 28 numbers divisible by 35: 313 - 28 = 285. Therefore 285 natural numbers less than 1000 are divisible by 5 or 7 but not by 35

[@bikrammisra9379]

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

[@schandacademy]

Thank you! Keep watching

[@jaydwarkadhish7]

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

[@AnushaAnu-rm5oj]

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

[@PavanManoj-rx9wx]

Yess sir,we are beginners

[@shaikismailshaikismail]

Im also same Beginner

[@Sreejathanneeru]

Yes ,sir

[@gautambande9330]

Yes sir I am also beginner please suggest us easy way

[@sagatamsukla2195]

Yes

[@muhammadsaeed4868]

Great explanation sir. Kindly teach all the questions

[@Shoe_fashion]

❤

[@taniya2001singh]

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

[@laxmipriyamohanta1720]

Thank you sir for sharing your knowledge with us. You hv excellent way of teaching techniques ,without discussing any unnecessary things.

[@schandacademy]

Thank you so much for your kind words! We're glad you find the teaching helpful and focused. Your support encourages us to keep delivering quality content. Keep learning and feel free to ask if you have any questions! 😊

[@avniskuhuvideos7121]

Great Explanation , Thank you sir 😊

[@schandacademy]

Most Welcome! Keep watching

[@wahidbhai3437]

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

[@schandacademy]

Glad to hear that Wahid. Best of Luck

[@Bromotologist]

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]

Most welcome! Keep watching

[@ABHISHEKGUPTA-vi8ks]

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

[@suhailmajeed6783]

I am fully satisfied with your fantastic lecture...

[@schandacademy]

Best of Luck!

[@nl9185]

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

[@schandacademy]

So nice of you NL! Keep watching

[@Bromotologist]

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

[@schandacademy]

All the best! Keep watching and sharing

[@sridevi1355]

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]

Same I am also preparing for ipmat 😇 best wishes

[@himanshukandpal2636]

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]

@@himanshukandpal2636 arithmetic is included in this or not?

[@tsereis-2]

Kindly appoint teachers who know how to teach students..

[@ShaliniRao-tu2yc]

Better way of teaching and language 😊

[@schandacademy]

Thank you!

[@abhi.dx2345]

29:00 52:37 very important sum

[@UditTandon-zq8xz]

Sir your best explanation ever

[@Akct123]

sir question number 75 at 48:00 is not correct because in that question, one value is 786 not 768 so this changes the whole question.

[@apsirlbsnaa]

Blindly teaching without carefully analyzing questions can ruin the careers of some aspirants.😞😞

[@Bhartiya_Indian_1]

Exceptionally great explanation 🤍

[@schandacademy]

Thank you mcuch!

[@gauravpratapsingh8732]

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

[@solankikanthubhavaghubha4929]

Great Explanation of concept, sir

[@schandacademy]

Thank you! Keep watching

[@G.one.]

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

[@ChawanAvinash-e4s]

I like teaching style sir

[@schandacademy]

Glad to hear that. Keep watching!

[@samashtiadeel9945]

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

[@arpitsingh4490]

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

[@KeerthiKatkuri]

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

[@schandacademy]

Best of luck! Keep watching

[@Adnanansari7056]

Sir I am satisfied with your education.

[@schandacademy]

Thank You

[@lg6944]

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..

[@soulscreation3875]

Sol. 11) n/2*(a+l) = (110 - 91+1)/2 * (91 + 110) = (110 - 90)/2 * (201) = 2010. @S Chand Academy OR (90 +1)+(90+2)+(90+3)+....+(90+20) = 90*20 + 20*(20+1)/2 = 1800 + 210 = 2010 #S Chand Academy

[@SPSJ522]

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]

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]

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]

@@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.

[@nikunj9973]

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

[@stp524]

Thank you sir it was helpful 🙏

[@schandacademy]

Most welcome and keep wacthing more videos.

[@anjalisharma5062]

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

[@schandacademy]

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

[@AnjaliRani-r5k]

Thank you sir😊

[@schandacademy]

Most welcome and keep watching!

[@Gamingzone-mn7vr]

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

[@anumfatima5169]

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

[@kamalakk5630]

Thanks for teaching in English

[@schandacademy]

Keep watching!

[@venkyrocks4000]

Sir Explain more questions for each chapter

[@jarupulaganesh3624]

At 13th question we also use division rule...(1+4)-(0+3)=2...So answer is 2..

[@hop481]

The best book and best sir

[@schandacademy]

Thank you and keep watching

[@FAIZANSHAIKH-h4t]

I'm in class 11th but i want to become sub inspector so i started preparing from class 11th .... 😊❤

[@schandacademy]

That's a great start! Keep up the hard work.

[@aswathimohan5695]

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?

[@harshithathota3238]

Yes

[@harshithathota3238]

Yes

[@AmishaYadav-b7m]

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

[@schandacademy]

Thank you

[@DM12988]

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]

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]

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

[@shubhamnagar4955]

Great communication skill and very easy method to explanation ❤

[@schandacademy]

Thank You Shubham

[@MajjiSaiHarsha]

1.Face Value 2. Place value 3. List all Prime numbers below 100 4. Opposite to Prime ~Composite numbers. 5. Divisibility rule

[@ramgopaljallu5104]

sir small request teach all questions ....?

[@Leveluplifeamen]

God bless yuh sir❤

[@schandacademy]

Thank You!

[@sruthis2587]

Great class sir ❤.

[@schandacademy]

Keep watching

[@kd6534-t1j]

Great fit revision han play in 2x

[@schandacademy]

Best of Luck!

[@fazal3933]

Sir for question 24. the answer will be 285.. Because Number which are divisible by 5 or 7 are 313 but we need to exclude number divisible by 35 . We only want the numbers divisible by 5 or 7 but not by 35. So, we subtract the 28 numbers divisible by 35: 313 - 28 = 285. Therefore 285 natural numbers less than 1000 are divisible by 5 or 7 but not by 35

[@vsoumyasoumya9518]

Thank you sir for your nice learning

[@samkalkir8499]

Superb sir Basic is king

[@schandacademy]

Thank you!

[@vijay7013]

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

[@Kohila-j1n]

Sir we want example sums

[@namumaimuna6734]

Sir you are the best

[@schandacademy]

Thank you! Keep watching

[@camfotographer]

75 number question is wrong....in the divisible part of 786 will be 768 46:32

[@sachinchopra3756]

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 🙏

[@manasakodem4524]

Online classes are there

[@visnuvisalini819]

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

[@jmusic5895]

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

[@Jan.12342]

Sir,How to find divisibility of 17?

[@yashikakatyayan8456]

Sir where is the concept of factorial of a number?

[@siddharththakkar9834]

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

[@rashmikishore174]

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

[@Mohityadav-pt1sy]

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

[@vaishnavisapkal6883]

It's really a grate teaching sir😊

[@schandacademy]

Keep watching Vaishanavi!

[@shravyakoppala5113]

*great

[@louisaccount3304]

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

[@devendrasahu870]

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

[@deepikathakur6739]

Nice explanation sir today am watching this video can you please tell me this book os available in hindi medium?? Nd where i can purchase?

[@schandacademy]

Please visit our official website www.schandpublishing.com to place your order.

[@ParmodRam-u5e]

🎉thank you sir ❤

[@schandacademy]

Most welcome!

[@vijay7013]

1 is composite number or not?

[@manikantasaragadam1751]

it is not becoz 1 didnt have more than 2 common factors it is just having 1 common factor

[@CADET_AGRIM_SHARMA]

Why didn't you explained factorial sir?🙏

[@leelamanasaravinahalli4064]

Sir what about pure maths concepts sir

[@nagarajubh4812]

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

[@nagarajubh4812]

Plz solv it sir

[@varuntilwani4242]

Hello Sir, sir why did you take the 3 consecutive numbers as x, x+2, x+4 and not x+3 & 7

[@SuvankarPaul-pn7zd]

Sir, please explain 7 and 13 divisibility🙏🏻

[@eswarroy8093]

it's really helpful sir ,thank you sir.

[@schandacademy]

Most welcome! Keep watching

[@devyanimorya5046]

Why 0 is considered to be an even number?

[@sakiism]

Because when we divide 0 by 2 ,it is still divisible cus the answer comes as 0 and not a decimal number

[@sakiism]

Because when we divide 0 by 2 ,it is still divisible cus the answer comes as 0 and not a decimal number

[@sakiism]

Because when we divide 0 by 2 ,it is still divisible cus the answer comes as 0 and not a decimal number

[@Mittapellyganesh]

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

[@ashakaushal2187]

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

[@Srilakshmi223]

What is the referral code of test coach app sir

[@anjanvihire_official]

Sir Hindi me available nhi hai kya

[@thegameradi8266]

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

[@Rrrr12346]

Acchi study krwai lekin jo humy aaty wahi apne pdhaye jo ji aate wo apne skip kr liye sir🥲

[@Vijayosuri-oq5xt]

Telugu lo cheppara sir

[@ritusaniya678]

sir please complete all chapter and each and every question

[@schandacademy]

Thank you!

[@MonaSharon-wx5kv]

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

[@PFEDITS0420]

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

[@PFEDITS0420]

Good

[@King-ib9uo]

Thank you so much sir it helped me

[@schandacademy]

Most welcome!

[@anshulagrawal1748]

@@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.

[@snipegaming3913]

Sir book ke common ayega kyaa

[@ramcreations444]

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

[@afraimkhan6793]

You are right man. There is a mistake

[@mohdnesharshah]

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

[@schandacademy]

Thank you! Keep watching

[@satheesh3603]

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

[@SIVAPRIYA-y6p]

Sir can you please explain examples also

[@Sulochana-qd7pw]

Thank u sir ❤

[@schandacademy]

Best of Luck! Keep watching

[@Pythondeveloper-c8j]

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

[@prajapatisuresh8013]

Very nice teaching method 👍🏻

[@schandacademy]

Thank you! Keep watching