UPSC CSAT - Basic Concept Of Number System (संख्या पद्धति ) | UPSC IAS 2024 | Short Tricks | OnlyIAS
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- Опубликовано: 11 сен 2024
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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
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
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Undoubtedly here is doing great. Loads of thank you
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sir please continues this series for full preparation 🙏🙏🙏🙏
Rishab sir always support. Our upsc journey.. Thank you so much💖💖💖💖💖😊😊😊 sir🙏🙏🙏🙏🙏🙏🙏
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
Literally one of the best series for CSAT, if not THE BEST.💯
Thnx ❤
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 👍
@@divyaupadhyay9311total -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
Q1: (c) 511/333 14:52
Q2: (d) 8 44:25
Q3: (d) none 49:43
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Sir please post such video for every day for each aptitude .. Thank you so much for that.
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Please continue this Series 🙏🏻
Sir aap Itna clear batatey ho Nice class sir 😊
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PQ - 511/333
PQ - 8
PQ - difference is 3
Sir ji thankyou for yours efforts💯💯🙌🙌
waiting for next session 🙇♀🙇♀🙇♀🙇♀
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But one request mid me dropped nahi karna,
CSAT also completed
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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
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
Yes sir clear
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Number System Completed
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Ofcourse 🎉🎉🎉🎉it's so important
SO LOT OF THANK YOU RISHAV SIR
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Thanks Sir 🙏
Fantastic session 👏❤❤
Thankyou 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)
1)C
2)B
3)C
Thankyou sir for this effort
C
D
D
Good explained sir
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Apke liye koi words nhi h ,🙏🙏🙏 bs thnk alot
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SHIVRAAM
Thanku sir kafi a6ha lgi class pls continue series sir
44:21 d is correct
49:35 option d is correct
Thanku so mach sir 🙏🏻🙏🏻
Thank you so much Sir😊🙏🏻
It's really helpful.
thank you so much sir you taught so well
14:55- answer c 511/333
Sir plz continue this series 🙏
What is time of this class. and is scheduled for all day??.. please do tell us sir
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💖💖💖Rishiv sir💖💖💖
Please continue this topic till end sir.
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Sir please make a vedio of 2023 csat paper solution 🙏🙏🙏🙏🙏🙏
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Good Afternoon sir
Continue this series...
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shukriya shukriya dear sir
Sir, please suggest the best book for the entire CSAT, or separate books for quantitative aptitude and reasoning. Please reply 🙏
14:56 option c==>1533/999=511/333
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Last question unable to solve, please help.
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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
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Pta nahi kyu हर टीचर अपनी सीरीज को बीच में छोड़ देते है
Please sir aap मत छोड़ना
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 🥺
Thanks sir ❤🎉
Option c is the answer
1) 511/333
2) 8
Smart 🤓 guy 😮😮
Thanks a lot
15:18 option b is right answers
2nd PYQ - 8
44:52 option b is right answers
14:54 Q1 - 511/333
44:23 Q2 - 8
49:40 Q3 - None (7)
👍👍👍👍👍👍
Nice 👍
Sir thankyouuuuuuu sooooooooo muchhhhhhhhh 😘😅
Nice content
First qus 1.534534 wale me ans 511/333 aayega
q1. answer = c) 511/333
q2. answer = d) 8
q3 answer = d ) none
Sir, 35 minutes ke baad ki video samjh nahi aayi..... Kya karu koi solution bataiye please 🙏
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
14:45 C
14:52 (C)