UPSC CSAT - Basic Concept Of Number System (संख्या पद्धति ) | UPSC IAS 2024 | Short Tricks | OnlyIAS

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[@Nisha-x1r4b]

Day by day this Coaching institute is shining between who can’t afford coaching 🙏 thanks to all teachers especially Rishab sir🎉

[@jindalnarnolia8817]

1st PQ (C) 511/333
2nd PQ (D) 8
3rd PQ (D) None (6)
thank you so much sir

[@ronitk2044]

Can you explain last one

[@chaya9119]

​@@ronitk2044 Find difference a-b like sir did which will be 3 , like that the nos are 14, 25, 36,47, 58, 69 satisfy the condition , total 6

[@prativasingh7905]

@@chaya9119 can u explain how 14, 25 till 69 has been calculated please

[@prativasingh7905]

@tanishagupta4302 which question?

[@sayeedasif2815]

​@@prativasingh7905 it shall be (4-1=3), (5-2=3), (6-3=3), (7-4=3)..... It is 41,52,63,74,85,96

[@anonymoous.............]

East to West Rishab Sir is the Best🎉🎉🎉

[@abhayjha2390]

Mind changes time to time

[@lokendrasingh2925]

​@@abhayjha2390yes but some people are special and they gave a big contribution in our life ❤ so some teachers are very special and equal to god 😍

[@INDIANfrommaharastra]

For those who don't understood last question 👍👍✍️
See we have two digit number
ab means 10a +b according to representation rule
After reversing it becomes
10b+a and the difference between them is 27 ,so
Evaluate
(10a+b) -(10b+a)=27
9a-9b =27
Take 9 common
a-b = 3
So we get an condition
In question they said two digit numbers means digits are from 1 to 9
So place all numbers in obtained equation
1) (a=3,b=0) =3 after (a-c)
2) (4,1)
3) (5,2)
4)(6,3)
5)(7,4)
6) (8,5)
7)(9,6)
7 possible values
I hope you got it❤❤

[@akansharawat]

ans is none, and in option one you have taken B as 0 which is not possible because when we reverse the number it will become ba which will be 03 which is single digit number, not two digit number as mentioned in the question, and in all other options if we minus ab and ba we will not get 27 as asked in the question so answer will be D) none

[@riyasharma6887]

Tonnes of thank u sir 🙏 pls continue this series every Sunday ✌✨🙏

[@TheDecemberGirl]

Undoubtedly here is doing great. Loads of thank you

[@rupeshdhruw6861]

Sir aaj ke video ke liye aapko bhut bhut dhanyavaad
. Aise hii aashirvaad rahe aapka. ❤🙏🙏❤

[@preetipandwar2113]

sir please continues this series for full preparation 🙏🙏🙏🙏

[@gurucharanbag3332]

Rishab sir always support. Our upsc journey.. Thank you so much💖💖💖💖💖😊😊😊 sir🙏🙏🙏🙏🙏🙏🙏

[@kanchankhandare3251]

Practice questions -
1) option c (511/333)
2) option d (8)
3) option d (none) (6)
Thank you so much sir for this session. Hope that you continue this session.

[@Ranjit_24]

Respected,how you solve last practice questions?

[@None-lr2cy]

It is 12 for the last ...we have to count the reversed (numbers) also🤔

[@Ranjit_24]

@@None-lr2cy ok 👍🏻

[@jindalnarnolia8817]

​@None-lr2cy bro, we have to identify the differences between numbers

[@jindalnarnolia8817]

The difference is 3, so 6 pairs formed out of 12 numbers

[@manasdugtal1078]

Literally one of the best series for CSAT, if not THE BEST.💯

[@user-pv3fk8sj3z]

Thnx ❤

[@codersj06]

last question solution: let original no be xy i.e, 10x+y so reversed no = yx i.e, 10y+x. given that xy-yx=27, so 10x+y-10y-x=27 => 9x-9y=27 => x-y=3 => y=x-3. now start substituting values into x from 0 and respective value of y will be (x-3) like if x=3 then y=0 so no.=30 similarly we'll get 41,52,63,74,85 and 96. So, total 7 such numbers.

[@divyaupadhyay9311]

6 numbers, nicely explained 👍👌 found helpful 👍

[@anamikarao1010]

​@@divyaupadhyay9311total -7 numbers because 30 will also be included

[@vaishaliyadav216]

30 include nhi hoga because agar iska reverse number lenge 03 to wo single digit number ho jayegi ...​@@anamikarao1010

[@Mukulmeena123]

03 is single digit

[@factfire9810]

Q1: (c) 511/333 14:52
Q2: (d) 8 44:25
Q3: (d) none 49:43
Thankyou for the class sir

[@kashishrangari5401]

Tysm sir u r the best faculty of onlyias❤

[@Chinesedramalover]

Thank you so much sir for your effort 🙏

[@Shruti_Vashishth]

Great to have u here, sir. I'm a regular student from one of ur batches.🙂🙏🏻

[@Red_Dout4267]

Sme😊

[@shahnawazhanfi9604]

Thankyou sir. Pls continue this series

[@kaushikacademy5915]

Sir absolutely we get success because of your favour

[@richachauhan3319]

Sir please post such video for every day for each aptitude .. Thank you so much for that.

[@naimamehjoor8162]

Thank you sir ❤

[@Shital_44]

Thank you so much dear sir....🙏🏻
Please continue this Series 🙏🏻

[@SonakshimishraSonakshimi-je7jd]

Sir aap Itna clear batatey ho Nice class sir 😊

[@Thesword-01]

May God bless you sir ❤

[@mumkinnhai]

Rishav sir hai to mumkin hai❤🙏

[@shivamsrivastav865]

very good initiative

[@saritabalara3223]

Bahut aache se samjhaya hai sir aapne... Thank you so much sir🙏🙏

[@prabhatyadav6569]

PQ - 511/333
PQ - 8
PQ - difference is 3

[@janhavishrivastav1059]

Sir ji thankyou for yours efforts💯💯🙌🙌
waiting for next session 🙇‍♀🙇‍♀🙇‍♀🙇‍♀

[@Gyanpunj57]

Thank u so much sir for this wonderful session , it'll help me a lot🙏

[@suchittiwari3749]

Very very nice sir,
But one request mid me dropped nahi karna,
CSAT also completed

[@Vishnumotivationstock6891]

Very much thank sir

[@Anshu_thakur_jii_7810]

Thank you so much sir for this CSAT session 🙏🤗🙏🤗🙏🤗🙏🤗🙏🤗🙏🤗🙏🤗🙏🤗🙏🤗🙏🤗🙏🤗🙏🤗

[@anilkumarpandit3185]

Wow what a amazing simplest way of csat

[@Muskan70953]

Are u a upsc aspirant

[@anilkumarpandit3185]

@@Muskan70953 ya

[@Muskan70953]

Kbse suru kri preparation

[@Muskan70953]

Kbse start kri preparation

[@anilkumarpandit3185]

@@Muskan70953 2021

[@danishbashir3422]

Sir my request is that ki we are beginners and we want you to go basic bit by bit in steps by explaining steps and concsepts
i hope that my request will be incorporrated thank you

[@studywithguru2236]

Yes sir clear

[@WordsWiring03]

OnlyIAS An Emotion❤

[@AshuParmar713]

Number System Completed

[@user-vp7vb8kq3v]

Please sir continue classes for CSAT in RUclips itself 🎉❤❤

[@-vk-sarforajAhmed]

Ofcourse 🎉🎉🎉🎉it's so important

[@harshrathore9407]

SO LOT OF THANK YOU RISHAV SIR

[@RahulYadav-iz4zr]

Thank you so much sir ji ❤❤❤❤

[@priyankapatel2436]

Thanks Sir 🙏

[@RadhaPatel3]

Fantastic session 👏❤❤
Thankyou sir

[@competitiveexams8970]

The sum of two digit of number is 7.if 27 added to interchange number . what is the number? ( Please give details explanation if possible)

[@anamikasanyal9481]

1)C
2)B
3)C
Thankyou sir for this effort

[@cricketkedewane8362]

C
D
D

[@HARENDRAsinghJADAUN]

Good explained sir

[@rajkalaverma4717]

Thank you soooo much sir🙏🙏🙏🙏
Apke liye koi words nhi h ,🙏🙏🙏 bs thnk alot

[@avinashsaini5953]

Thankkk you soooooo much sir ji!!!!! 🎉🎉🎉❤❤❤❤

[@natasa6321]

Bahut achhi class hai sir thank you so much ❤❤❤❤

[@Allmightyevil]

SHIVRAAM

[@anilsaini8860]

Thanku sir kafi a6ha lgi class pls continue series sir

[@anshuargwal]

44:21 d is correct
49:35 option d is correct

[@bhanusaini4304]

Thanku so mach sir 🙏🏻🙏🏻

[@Mousumi_10]

Thank you so much Sir😊🙏🏻
It's really helpful.

[@shaluraghuwanshi8377]

thank you so much sir you taught so well

[@AdityaSharma-xr7sp]

14:55- answer c 511/333

[@subhashreemohanty3579]

Sir plz continue this series 🙏

[@sumittripathi5719]

What is time of this class. and is scheduled for all day??.. please do tell us sir

[@zennatperween2668]

Thank you dear sir 💖
💖💖💖Rishiv sir💖💖💖

[@OsamaKhan-si8hv]

Please continue this topic till end sir.

[@smritisingh6991]

You're God for me ❤

[@SanaKhan-lq3po]

Sir please make a vedio of 2023 csat paper solution 🙏🙏🙏🙏🙏🙏

[@nikitasolanki854]

Thank you so much for this session 🙏❤️

[@Radhakrishna-k4y]

Good Afternoon sir

[@FutureiasAliya]

Continue this series...

[@aloksharma4454]

apki kasam .....apni trf se 100% dunga aaj se❤

[@yusufshaik5902]

Excellent sir ji

[@pallavichincholkar4822]

Sir topic wise class' s ki series shuru he ❓

[@pritamsingh904]

Thank u sir...

[@Motivational-thought...]

thank u so much sir ji

[@artigoswami9551]

Only IAS is an oasis in desert .

[@chandanparidwal3029]

shukriya shukriya dear sir

[@Vicky_Hrim]

Sir, please suggest the best book for the entire CSAT, or separate books for quantitative aptitude and reasoning. Please reply 🙏

[@himanshumaurya5901]

14:56 option c==>1533/999=511/333

[@vijaybhaskar1522]

Sir,can I buy your pendrive csat course.I am from a rural area where internet is not so good

[@AKRITITIWARI-uk4cd]

Last question unable to solve, please help.

[@manojk2923]

❤❤❤

[@anjaliyadav4837]

Sir I failed in prelims again because of csat, apki videos bht relevant thi bt sayad practice km rh gai...plz is bar ap abi se continue rkhna series to bht ache se practice ho jaegi .. thanku sir

[@PUJAKUMARI-ij6tg]

Jiska mujhe tha intezaar jiske liye Dil tha bekaraar wo lectures aa gye aa gye😂😅
You are all rounder sir ,,hats off 🙏🙏

[@Hustler99]

Pta nahi kyu हर टीचर अपनी सीरीज को बीच में छोड़ देते है
Please sir aap मत छोड़ना

[@sanjuktajishasarkar1036]

Sir. XYZ wala nhi samjha qki apne digit AB m se B ko 0 to 9 consider kiya n A ko 1 to 9 means 2 way but jab 3digit ka number hoga then 3 ways hona chahiye tha na 🥺

[@pratikshyaLickeyv16]

Thanks sir ❤🎉

[@Muskan70953]

Option c is the answer

[@vaidehipatel3227]

1) 511/333
2) 8

[@ayushtiwari5335]

Smart 🤓 guy 😮😮

[@Shubhambltr]

Thanks a lot

[@swera27919]

15:18 option b is right answers

[@rupalinbehera6428]

2nd PYQ - 8

[@swera27919]

44:52 option b is right answers

[@StuTube-Orion]

14:54 Q1 - 511/333
44:23 Q2 - 8
49:40 Q3 - None (7)

[@anjaliverma7957]

👍👍👍👍👍👍

[@sweetysaikia4414]

Nice 👍

[@lokendrasingh2925]

Sir thankyouuuuuuu sooooooooo muchhhhhhhhh 😘😅

[@shashishekhar4174]

Nice content

[@jyotijonwal475]

First qus 1.534534 wale me ans 511/333 aayega

[@dhruvjoshi9953]

q1. answer = c) 511/333
q2. answer = d) 8
q3 answer = d ) none

[@Asmile70]

Sir, 35 minutes ke baad ki video samjh nahi aayi..... Kya karu koi solution bataiye please 🙏

[@mirachavan3809]

Last ans is 9 (D none ) difference is 3
(10a+b)-(10b+a)=9(a-b)
9(a-b)=27
a-b=27/9=3

[@Abinash99]

How did you determine it to be 9 ? Pls explain, thanks

[@smritisingh6991]

14:45 C

[@kalpanarana402]

14:52 (C)