Some key points: i) if you are getting negative digit sum, then subtract it from 9.. you will get the actual digit sum.. for ex- if you are getting digit sum= -5 then the actual digit sum will be 9-5=4 😃👍 ii) Agar demominator me 3,6,9 rahe to unko multiplication se digit sum 1 nahi banaya jaa sakta.. so us part ko simplify karke hi uska digit sum liya jaayega.. for eg. 9471/123 + x - y + z = ? Hai to 9471/123 me 123 ka digit sum 6 aayega.. so denominator me 6 ane se us term ko simplify karna hoga.. matlab 9471/123 ko cancel karne se 77 ayega aur 77 ka digit sum 5 ayega.. fir proceed karenge 😃👍 iii) Digit Sum method is applicable on Simplification where we need exact values not in Approximation 😃👍 iv) Sometimes, Digit sum is not applicable in surds and indices which involves power and root operations😃👍 v) Suppose there is 81 × X = 324 and find x=? Here in LHS digit sum of 81 is 0 and when 0 is multiplied with "X" it will be zero and clearly digit sum of RHS i.e. 324 is also zero this satisfies the condition but we can't predict the Digit sum of "X" because if we substitute any value for "X" when multiplied with zero will always give zero.. so in such cases we can't apply digit sum 😃👍
Agar demominator me 3,6,9 rahe to unko multiplication se digit sum 1 nahi banaya jaa sakta.. so us part ko simplify karke hi uska digit sum liya jaayega.. for eg. 9471/123 + x - y + z = ? Hai to 9471/123 me 123 ka digit sum 6 aayega.. so denominator me 6 ane se us term ko simplify karna hoga.. matlab 9471/123 ko cancel karne se 77 ayega aur 77 ka digit sum 5 ayega.. fir proceed karenge 😃👍
Sir I'm watching this video 1 year hence your uploading. I can't stay without doing this comment. In one word this is a mind-blowing concept I have ever seen ❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️ Genius sir, really superb. Words getting less praising this session ❤️🔥. I'll definitely recommend this video to my acquainted ones as many as possible👌. Thank you sir ❣️🙏
Wow sir ye trick mujhe nahi pta tha ab tk. Mai mocks lagata hu to usme calculation me hi slow rhta hu. But ab lg rha hai ki calculation wali dikkt ab nahi hogi. Bs practice krna hoga isko aur acche se. Wese ye trick ka pura background bhi smjhaoge to life me kbhi nahi bhulenge isko. Ty sir 😊
I was literally spending so much time calculating all this.. Thank God I landed on this video.. Your tricks are just awesome Sir.. Keep teaching more... If possible please give some tricks to solve the wrong no. and missing no. series.. 🙏🙏
The Best Video till date sir....... Ur Mr. Maths .... ❤️🙏 Love the Method...Gonna solve my next all Questions with This Digit sum method....No more dangerous Calculation is needed...Thanks a lot Mr. Maths..... Kaushik sir Jug jug jio...... ❤️❤️🙏🙏
Thanx for this wonderful compliment ❤️ it really means alot 😃 but be careful, it will take time to get hold of it.. so keep practicing and you will get to know there are few types which can't be solved using Digit Sum 😃👍 at last.. keep learning ❤️
@@CareerDefiner OKK..SIR Plzzzz plzzz make a video on tbose problems also....Sir Also pin your recent comment about this method that Every student will know about the Negative value case. ..Plzz make another video sir....!!
Answer X = -2 As you said that when negative digit sum comes we need to subtract that from 9 to get the actual digit sum so 9-2 = 7 So the digit sum of option b is 7 so the answer is B) 193327
Ans - B Words alone cannot express our gratitude for all the time you spent teaching us. But because of your help I'm doing well in mathematics. You're one of those very special teachers that I have. Thank you sir.❤️
Very very thankful to sir .Mera bad luck sir ki ye vedio Maine abh dekha .agar pahale dekha hota to abtak ultra pro banata .but thankfully Maine abh dekh liya to bahut Khushi huyi...you are great hats off salute.
Sir I commented without watching the video because i knew you were going to tell us amazing tricks After watching I can't believe I will be solving these questions very easily Thankyou so much You are really doing great job sir
Much awaited session 😁. Thanku Sir for this useful class and yes sir we need background logic too pls come up with that soon as exams are very near ! 😊🙏
Thankyou bhai... Mai maths se bht zyada darti hu but ab thoda sa confidence agaya h .. 👍 ................... Bhai iska answer -option(d) digit sum 8 =8
Awesome session I actually knew digit sum method before watching this video but used to avoid it while solving questions because it was extremely confusing for me. But this session helped a lot.
Am using this legendary method from long time 🔥🔥 its really hard & fast ... But ibreally want to appreciate to u sir ji ...your doing your job so well 👏👏👏👏 ...
Sir ye session dekh ke mera muh khulla ka khulla rh gya😀...itna mja aya kya btau sir...no words only OMG..kya ho aap ksm se...sir aap sath h tho bohot Positive Feel aa rha h job tho pka milega...
I made all the question but when it came to the homework question I tried doing that in digit sum method and I got -2 answer and I couldn't understand where I was wrong at than I tried doing in traditional method and I got correct ans🤯 but than I thought where I was wrong that I got negative than I saw ur cmnt I got to know that I got the correct one I. E. 9-2=7, option B🤭 Sir the tricks were just Mindflowing... Tremendous work as usual 🤘☺ This video is the most favorite one of mine.. I cannot believe on me that I did it in 10 sec.. U r really a magician 😌 Feeling better now... Idol 👏😇
Agree 😃👍 but then go for unit digit.. if one of the option satisfies both unit digit as well as digit sum conditions, then trust me.. that will be 200% true 😃👍
@@CareerDefiner oo bhai App toh kamal Apko kitani fee chahiye bol do .Bas selection karvado ..me apko intane dino se follow kar raha hu but ye video nahi dekhi thi , Such a great salute to this Gentalman ...
Go through the options and substitute them directly.. but the problem is both 80 and 50 satisfies the digit sum criteria.. so we need to solve it exactly 👍 ans will be 50 👍
@@CareerDefiner Thanks for the reply sir. But please let me know how did you find 50 with digit sum because i am getting only 80 using this concept. Please clear this,, will be very thankful 🙏
@@CareerDefinersir digit sum kaha use kare aur unit digit method, Mei apka simplification ka video dekh raha tha (foundation wala) but kuch digit sum method ke answers ke option same nhi the,but waha pe bhi digit sum apply kya apne ,to hum kaise Jane ki kaha kya apply kare
watching this video for first time after facing 5 banking examination .......... though i am subscriber of this channel since few months back .......great videos sir ..........
The ratio of milk and water in a container is 2:9 inintially 22 litres is taken out and 10 ltr is added to mixture Again 25 percent of mixture is taken out such that 57ltrs of mixture is left in container. Find amt of water present initially.. pls reply hw to approach this question
*Error Concept is full of flaws cant apply in every question of simplification especially whose answer is in single DiGit. Challenge apply this formula to your previous simplification lectures* 🙌
Thanks for the awesome session. I was facing difficulties in probability..I watched many videos...but after watching urs...I m able 2 to solve it fast.. Sir, pls do make videos on fast calculation tricks for table DI.
Agar demominator me 3,6,9 rahe to unko multiplication se digit sum 1 nahi banaya jaa sakta.. so us part ko simplify karke hi uska digit sum liya jaayega.. for eg. 9471/123 + x - y + z = ? Hai to 9471/123 me 123 ka digit sum 6 aayega.. so denominator me 6 ane se us term ko simplify karna hoga.. matlab 9471/123 ko cancel karne se 77 ayega aur 77 ka digit sum 5 ayega.. fir proceed karenge 😃👍
Answer is 2nd 193327. Idk why I haven't seen this video till now. The trick u teach is just mind blowing , thank God accidentally I found this video and watched it. Thank u sir..💜
Please sir solve some other questions to apply digit sum concept and also it's logic In some question this concept not applicable Q.39.97%of649.8÷13.05=45.12-? a.40 b.25 c.30 d.15 e10 Q.√575÷?×14.98×14.98=450 a.15 b.7 c.10 'd.12 e.4 Q.?×?-137.99÷6=21.99×23.01 a.23 b.50 c.42 d.29 e.35
I visit very first time on your channel & also i liked and subscribe your channel. Really great sir 👍 thankuuu soooo much🙏. I took coching before 2 3 years then i was taught that DS does not valid for ÷ and approximation while DS iss more needed in these types or sum. You tell veryyy nice way for division for what i was veryyyy worried. Thanks a lottttt again 🙏🙏🙏
Ans is c) 313.2854 Clearly the digit sum is 8 and option a) c) and d) have digit sum 8 but since the lhs contains product of decimals there values will come in 0. Something so when -313.06 from rhs comes to lhs and added with 0. Something the ans will be Definitely 313. Something.. hence option c) is correct 😃👍
I cant even tell you how much helpful it is i usually used to skip these kinda questions not anymore 🙏🙏 your teaching skills are ammaaaazzzzzzingggg thank you soooo very much sir 🙏🙏🙏 very thankful to you
I am following all your videos and still learning... Every time i watching your videos it gives me confidence to do any sum... Thanks a ton sir... Keep guiding us...
Sir option B is right answer kyoki sir mera reamining -2 Raha mene ese 9-2 me gata Diya ab reamining 7 hai jisma digit sum 7 hoga vahi eska answer hoga
Thank you sir for this informative video ,before this i used to solve the whole question stp by step and due to lot of calculation ,I got wrong answer. Thank you once again.