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🎉

[@dearkirtisharma]

Best teacher of CSAT...🥰
Rishav sir jesa CSAT, Quant, reasoning koi nhi kara sakta...☺️
Kuch topics se bahut dar lagta tha...but aapne unhe easy bna diya...
I must say sir is very very humble teacher I met in life...sir ne time to time motivate kiya hai support kiya hai...
For CSAT Rishav sir's class plus his practice questions are very enough... classes bahut achhi thi we enjoyed sir...we will miss you sir...🥲
Thank you very much sir...🥰🙏🏻
CSAT is conceptual but, not complex...❤

[@kratikakratika4534]

Your innovative teaching methods make even the most difficult topics easy to understand . Thanku sir

[@Manisha90012]

Best teacher of CSAT
From your teaching we learn all topic from which we can fear to study thank u for this sir❤❤🫠🙏🙏

[@SONAMKUMARI-qc9ks]

Thank you for making learning so enjoyable and easy, you're an amazing teacher , love the way you teach ❤❤

[@vanshagvlogs]

Thank you so much, sir from my heart for the fantastic CSAT JOURNEY. I am glad to be a part of this journey and understood that CSAT is conceptual not complex.

[@gopalji0006]

Before His class maths is such a big hurdle in my life I studied maths in my school just to score the passing marks but the moment I started studying with Rishabv sir it becomes a great journey . He makes CSAT a great subject to learn and make it very conceptual. He reduce the complexity of maths and make things highly interactive . Anyone can freely and enroll to his classes ❤ without any second thought in his or her mind 💭

[@falakafreen2101]

Sir the way ur teaching style is amazing. And you are the best teacher specially for csat and economy .. thank you so much sir .

[@ayushiyadav3749]

Sir your teaching style is amazing and sir you really made CSAT easy and interesting for us
Thank you sir ❤❤❤❤❤

[@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 😍

[@NandiniSen-k9f]

Ya bilkul you are right

[@RanjanaKumari-cx4sn]

Best faculty for CSAT in pw being medico background i was scared for my CSAT preparation but not now. i m greatful having u as my faculty thank you 😊

[@dilipmistri4410]

Best teacher for CSAT, you give me confidence in reasoning and quant, earlier i was so much scared from this two, but now I can solve most of the questions.
Your Classes are very much helpful to me, Thank you Rishabh 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

[@forevervids]

One of the best teacher by whom I studied who supported at every point of doubts and questions and your teaching style is so amazing that topics looks like a cup of cake..
Thank you so much sir....❤❤

[@ashishShrivastav3107]

To be honestly
Unbiased
Trust me guys rishav is best for csat agr rishav sir mujhe school time milte toh mai pkka maths optional ka student hota aj best classes best explanation and best way of teaching

[@sumedhbhaskare3058]

Rishav sir is the best teacher for CSAT from basic concept to advance

[@Dawsonfurry]

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

[@__CURIOUS11__]

Coz ​its not said that the number got by reversing the digits should also be a two digit number. Hence 30 is also one of such numbers@@akansharawat

[@UPSCINSIGHT-r8r]

Rishabh sir is the best faculty for CSAT prep 🎉🎉love you sir ❤❤❤❤very much😊😊

[@VikashKumar-dg3qj]

Best teacher for CSAT
Bahut ache se sara concept samajh aaya😁❤️

[@tanukamal9115]

I learnt csat in very easiest way with guides of sir is best

[@saltkh2507]

Sir ap bahut achha padhate hain, har ek topic achhe se samajh ata hai... thank you sir ❤

[@adarshrathore8622]

Sir your teaching style is very good ❤❤I really enjoyed the CSAT batch

[@vinitakumari8755]

Sir mera maths acha nhi hai but you clear all my concepts ❤ best teacher for CSAT

[@kashishsinha5919]

EK no. teacher , mza aaya sir apse padh k🤩

[@Mysterious-r2l]

Great Faculty ❤

[@subhamshil2949]

G.O.A.T for CSAT & upsc aspirants 🙏🌞❤️

[@SupriyaGupta-n6r]

Sir.... you are the best teacher for CSAT . Your teaching style is superb...... thank you sir 🙏

[@ompriyasahu1233]

Sir you are the best your teaching skill just amazing,

[@rupeshdhruw6861]

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

[@canaan5151]

Thank you so much. You are an exceptional teacher who gives his best to give us the best. I feel very lucky to study from you. There are very less teacher like you who love what they teach and make scary concepts very easy. Thank you so much, sir🙏

[@riyasharma6887]

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

[@RakeshKumar-eb7ti]

BEST FACULTY FOR MATHS AND QUANT LEARNT TOUGH THINGS IN AN EASY MANNER❤❤❤❤❤

[@dr.shivi..6882]

From phobia to clouds ☁️ you made it best for me thankuuu somuch Rishav sir.CSAT is now amazing bcs of you.❤😊

[@gurucharanbag3332]

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

[@anshdoc8285]

Best teacher for CSAT
Thank you so much sir for making CSAT much easier 🙏

[@aman.preet.bawa.1234]

Thanks you so much sir. You are best teacher of csat

[@Anonymastt]

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

[@TheDecemberGirl]

Undoubtedly here is doing great. Loads of thank you

[@Ruturaj31fn]

Hey hello 😂

[@ChinuPattanayak-g7t]

He was an amazing teacher of csat, current affairs ❤❤❤,hat's of to you sir.

[@AijazQurashi-m4w]

Very helpful. I attended all classes from. Reshav sir. On Prahar

[@AjayKumar-bm4zf]

You are the best sir🎉❤❤❤❤❤❤❤❤❤❤❤❤❤❤

[@-vk-sarforajAhmed]

Kuch ho na ho ..aapka pura class ek ek din dekha ...,2.5 months ..,pura score ka warranty nahi deta lekin ..sir itna toh pura umeed hai ki ...paper 2 clear jarur kar lunga is baar ..,Thanks a lot sir ,baas geometry ka chapter nahi Dekha ache se ..baki sb ..pura ..😊

[@shivamsrivastav865]

very good initiative

[@richachauhan3319]

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

[@PinkyJeph]

Best teacher for csat😊😊

[@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

[@PriyaKushwaha-z6i]

One of the best teacher for csat

[@gunjankumari633]

Thank you so much sir for wonderful sessions ❤❤❤😊😊😊 you made me to understand all the difficult concepts of CSAT🙏🙏🙏🙏🙏

[@kashishrangari5401]

Tysm sir u r the best faculty of onlyias❤

[@preetipandwar2113]

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

[@nitinbhardwaj1619]

Sir ji ky padhate ho ap fan ho gye

[@shahnawazhanfi9604]

Thankyou sir. Pls continue this series

[@mumkinnhai]

Rishav sir hai to mumkin hai❤🙏

[@Anubhab_Mishra]

Too good..all ur series are worth the time Sir..Be it Prelims Booster or CSAT for Sunday or Economy weekly..

[@dia1414]

Representation of no.
Que *+1*+2*+*3+*1=21*
Ans is 8
Q2. Ans is 3
Thank you sir for such an amazing lecture i loved the way of your teaching its clear and simple with great explanation. 🤍

[@ashwanisaini-ky3zv]

Very good teacher

[@laxmiyadav-px1ut]

Really day by day this institute is shining 🌟🌟🌟🌟🌟❤❤

[@hiinameto3589]

Sir fantastic 🎉🎉🎉🎉🎉

[@Thesword-01]

May God bless you sir ❤

[@Chinesedramalover]

Thank you so much sir for your effort 🙏

[@parneet4543]

Best teacher ever ✨

[@saritabalara3223]

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

[@sayanDhara-kg4ny]

Really enjoyed the csat batch ❤❤❤

[@RadhaPatel3]

Fantastic session 👏❤❤
Thankyou sir

[@ManjuSoni-bn6gq]

Thanku for csat sir you r the best 😊

[@pankajsaw4524]

Thank you sir , for your Good way of teaching

[@DMसाहेब]

🎉🎉best faculty in pw thank you for everything sir 😊😊

[@natasa6321]

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

[@Vishalbhat12]

Best sir 😊

[@anamikasanyal9481]

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

[@cricketkedewane8362]

C
D
D

[@Anshu_thakur_jii_7810]

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

[@priyankapatel2436]

Thanks Sir 🙏

[@StuTube-Orion]

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

[@Sonakshimishrazx]

Sir aap Itna clear batatey ho Nice class sir 😊

[@Mahesh_kumar20]

One of the best teacher sir

[@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

[@anilsaini8860]

Thanku sir kafi a6ha lgi class pls continue series sir

[@shaluraghuwanshi8377]

thank you so much sir you taught so well

[@yusufshaik5902]

Excellent sir ji

[@WordsWiring03]

OnlyIAS An Emotion❤

[@ishikakumari3669]

Gem of PW ❤

[@Gyanpunj57]

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

[@kaushikacademy5915]

Sir absolutely we get success because of your favour

[@harshrathore9407]

SO LOT OF THANK YOU RISHAV SIR

[@Therealadvisorvishnu6891]

Very much thank sir

[@Shruti_Vashishth]

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

[@Red_Dout4267]

Sme😊

[@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.

[@Dkupadhyay9311]

6 numbers, nicely explained 👍👌 found helpful 👍

[@anamikarao1010]

​@@Dkupadhyay9311total -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

[@prabhatyadav6569]

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

[@PUJAKUMARI-ij6tg]

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

[@satyambaraskar3148]

Practice questions 44:22 answer is 8

[@RahulYadav-iz4zr]

Thank you so much sir ji ❤❤❤❤

[@Radhakrishna-k4y]

Good Afternoon sir

[@avinashsaini5953]

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

[@OsamaKhan-si8hv]

Please continue this topic till end sir.

[@studywithguru2236]

Yes sir clear

[@bhanusaini4304]

Thanku so mach sir 🙏🏻🙏🏻

[@zennatperween2668]

Thank you dear sir 💖
💖💖💖Rishiv sir💖💖💖

[@rajkalaverma4717]

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

[@sweetysaikia4414]

Nice 👍

[@smritisingh6991]

You're God for me ❤