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❤❤
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
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
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.
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. 🤍
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.
Can someone please explain the video at 17:21 minutes…..if subtracting 1000x-10x=990x then why we are subtracting only 1 from 173.7373, why not 10 from 173.7373
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
The last one question's answer is 3 a+b= 10a+b------- equation (1) b+a= 10b+a-------- equation (2) So, the difference between two digits is 27:- Then, (10a+b)-(10b+a) = 27 10a+b-10b-a = 27 9a-9b = 27 Let's take 9 common; 9(a-b) = 27(divide by 9) a-b = 3 So, there are 3 numbers. 😊❤ I hope you understood.
Day by day this Coaching institute is shining between who can’t afford coaching 🙏 thanks to all teachers especially Rishab sir🎉
East to West Rishab Sir is the Best🎉🎉🎉
Mind changes time to time
@@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 😍
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❤❤
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
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
1st PQ (C) 511/333
2nd PQ (D) 8
3rd PQ (D) None (6)
thank you so much sir
Can you explain last one
@@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
@@chaya9119 can u explain how 14, 25 till 69 has been calculated please
@tanishagupta4302 which question?
@@prativasingh7905 it shall be (4-1=3), (5-2=3), (6-3=3), (7-4=3)..... It is 41,52,63,74,85,96
Sir aaj ke video ke liye aapko bhut bhut dhanyavaad
. Aise hii aashirvaad rahe aapka. ❤🙏🙏❤
sir please continues this series for full preparation 🙏🙏🙏🙏
Rishab sir always support. Our upsc journey.. Thank you so much💖💖💖💖💖😊😊😊 sir🙏🙏🙏🙏🙏🙏🙏
Tonnes of thank u sir 🙏 pls continue this series every Sunday ✌✨🙏
Undoubtedly here is doing great. Loads of thank you
Hey hello 😂
Rishav sir hai to mumkin hai❤🙏
Thank you sir , for your Good way of teaching
very good initiative
Literally one of the best series for CSAT, if not THE BEST.💯
One of the best teacher sir
Really day by day this institute is shining 🌟🌟🌟🌟🌟❤❤
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
Sir please post such video for every day for each aptitude .. Thank you so much for that.
Thankyou sir. Pls continue this series
Tysm sir u r the best faculty of onlyias❤
Too good..all ur series are worth the time Sir..Be it Prelims Booster or CSAT for Sunday or Economy weekly..
Thank you so much sir for your effort 🙏
Bahut aache se samjhaya hai sir aapne... Thank you so much sir🙏🙏
44:22 2nd pyq 2018 answer is d i.e 8😊😊
a+(10+a)+(20+a)+(10a+3)+(10a+1)=200+10+a
23a+34=210+a
22a=176
a=8
Bahut achhi class hai sir thank you so much ❤❤❤❤
May God bless you sir ❤
Thanku sir kafi a6ha lgi class pls continue series sir
Sir aap Itna clear batatey ho Nice class sir 😊
Fantastic session 👏❤❤
Thankyou sir
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.
6 numbers, nicely explained 👍👌 found helpful 👍
@@Dkupadhyay9311total -7 numbers because 30 will also be included
30 include nhi hoga because agar iska reverse number lenge 03 to wo single digit number ho jayegi ...@@anamikarao1010
03 is single digit
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. 🤍
Thank you so much sir for this CSAT session 🙏🤗🙏🤗🙏🤗🙏🤗🙏🤗🙏🤗🙏🤗🙏🤗🙏🤗🙏🤗🙏🤗🙏🤗
Wow what a amazing simplest way of csat
Are u a upsc aspirant
@@Muskan70953 ya
Kbse suru kri preparation
Kbse start kri preparation
@@Muskan70953 2021
Great to have u here, sir. I'm a regular student from one of ur batches.🙂🙏🏻
Sme😊
1)C
2)B
3)C
Thankyou sir for this effort
C
D
D
thank you so much sir you taught so well
Thanks Sir 🙏
Thank you soooo much sir🙏🙏🙏🙏
Apke liye koi words nhi h ,🙏🙏🙏 bs thnk alot
Sir csat ka der thoda km hua....thnku so much sir
Thank you so much sir ji ❤❤❤❤
Sir absolutely we get success because of your favour
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.
Respected,how you solve last practice questions?
It is 12 for the last ...we have to count the reversed (numbers) also🤔
@@None-lr2cy ok 👍🏻
@None-lr2cy bro, we have to identify the differences between numbers
The difference is 3, so 6 pairs formed out of 12 numbers
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Excellent sir ji
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Thankkk you soooooo much sir ji!!!!! 🎉🎉🎉❤❤❤❤
Thank u so much sir for this wonderful session , it'll help me a lot🙏
Very very nice sir,
But one request mid me dropped nahi karna,
CSAT also completed
Jiska mujhe tha intezaar jiske liye Dil tha bekaraar wo lectures aa gye aa gye😂😅
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OnlyIAS An Emotion❤
Thank you so much Sir😊🙏🏻
It's really helpful.
You're God for me ❤
Please continue this topic till end sir.
Thank you dear sir 💖
💖💖💖Rishiv sir💖💖💖
Can someone please explain the video at 17:21 minutes…..if subtracting 1000x-10x=990x then why we are subtracting only 1 from 173.7373, why not 10 from 173.7373
Sir ji thankyou for yours efforts💯💯🙌🙌
waiting for next session 🙇♀🙇♀🙇♀🙇♀
PQ - 511/333
PQ - 8
PQ - difference is 3
Q1: (c) 511/333 14:52
Q2: (d) 8 44:25
Q3: (d) none 49:43
Thankyou for the class sir
Thnx ❤
Thank you so much for this session 🙏❤️
Good Afternoon sir
Please sir continue classes for CSAT in TH-cam itself 🎉❤❤
Ofcourse 🎉🎉🎉🎉it's so important
Thank u sir...
Continue this series...
Yes sir clear
Nice handwriting sir 🎉
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)
Smart 🤓 guy 😮😮
Nice 👍
sir pls continue and complete CSAT tq sir
Only IAS is an oasis in desert .
Good
What is time of this class. and is scheduled for all day??.. please do tell us sir
Sir thankyouuuuuuu sooooooooo muchhhhhhhhh 😘😅
Thank u so much dear sir...
shukriya shukriya dear sir
Number System Completed
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
Bohut acha padate ho sir aap😊
Plz continues sir❤
Pta nahi kyu हर टीचर अपनी सीरीज को बीच में छोड़ देते है
Please sir aap मत छोड़ना
14:54 Q1 - 511/333
44:23 Q2 - 8
49:40 Q3 - None (7)
Thank you😊
14:55- answer c 511/333
Last question unable to solve, please help.
Sir plz continue this series 🙏
Nice content
44:21 d is correct
49:35 option d is correct
SHIVRAAM
Sir topic wise class' s ki series shuru he ❓
please take ratio and proportion in the next class sir
Thank you !
Ans.
1- 511/333
2- 8
Sir please make a vedio of 2023 csat paper solution 🙏🙏🙏🙏🙏🙏
❤❤❤
Good explained sir
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
How did you determine it to be 9 ? Pls explain, thanks
@@Abinash99 u can see common ab right , cut them then it will become 9 from 10 coz u cut ab …😊
14:56 option c==>1533/999=511/333
The last one question's answer is 3
a+b= 10a+b------- equation (1)
b+a= 10b+a-------- equation (2)
So, the difference between two digits is 27:-
Then,
(10a+b)-(10b+a) = 27
10a+b-10b-a = 27
9a-9b = 27
Let's take 9 common;
9(a-b) = 27(divide by 9)
a-b = 3
So, there are 3 numbers.
😊❤
I hope you understood.
BUT further its asking how many such digits will form???sirf digit nai puchi hai..how many possibilities puchi hai
@@ayu24222 so, it would be three either.
Answer is d not 3 or either 😊
Sir, please suggest the best book for the entire CSAT, or separate books for quantitative aptitude and reasoning. Please reply 🙏
Sir,can I buy your pendrive csat course.I am from a rural area where internet is not so good