digital root arithmetic is given as 1x4 +9x8 = 7x ans 4+9= 7x ans 4= 7x ans option d has digital root 7, so put 7 has ans in above equation it becomes 4=7x7 4=4 so d is answer Note: if answer is given as approximate values then we can't find answer using digital roots. ( I have explained this in video; digital root works only for 100% accurate values
take digital roots on both sides 3* x = 9*2 3*x= 9 now if value of x is 3 then 9==9 condition will be satisfied. So 192 has digital root 3. so this will be answered.
You are right but in some questions, where there is more than one option has similar digital roots then we guess its answer using unit digit method. here 42*x= 8064 now x = 8064/42 you can guess that unit digit will be 2, not 6 so, if there is more than one option has same digital roots then don't apply this method. But before quitting try to guess answer using unit digit if helps that way.
Hi Amritpal Kaur, don't apply in such type of questions. because here, the division is involved so it will become complex. and also, the answer is an approximation. So, digital root does not work for approximate values. I mean if 100% correct answer is e.g 3.3446 and if we round off it to 2 decimal like 3.34; then also it is approximate value and digital root would not satisfy it.
Sir please show me how to solve this 73922/23 = ?? I have taken the num as 739/23, then taken approx. as 700/20 = 35, then I did 35×3 = 105, then 739 - 105 = 634, then 634/(2×10) = 317/10 = 31.7. And the correct ans is 3214. Please Sir guide me...
Hi NIkita Vadher , 9 se to aap directly divide kariye, isme kya trick ki jarurat hai? waise ek trick hai 9 se division ki but directly division me bhi bahut kam time lagta hai
SuccessRisers sir aisa ho sakta hai kya ki agar ham denominator me 10 assume kar ke easily divde kare jaisa trick apne division me bataya tha us method ko apply kar ke find kiya ja sakta hai???
bilkul kiya ja skta hai.....lekin approximate value me jyada error mat lena....nahi to answer me error jyada aayega...but agar aap approximate value ko exact leti ho to fir normal division me aur is trick se division me same time hi lagega.. ye trick large number divisions me time save kar deti hai approximately close answer nikalkr
For example- 12101/9= ? approximate value per unit is 12000/10 = 1200 (12101+1200)/9+1 = 13301/10 = 1330.1 value exact karne ke baad bhi value correct nhi aa rhi hai..iska answer 1344.55 aa raha hai....kindly explain this example by using ur trick....plz sir
answer close to aa rha hai....isse jyada accurate lana hai to approximate value ko aur jyada accurate karo...like take 12141/9 = 1349 ( maine 12141 isliye liya taki 9 se divide ho jaye) now add 1349 in numerator and 1 in denominator it will become 13450/10= 1345 it is approximately correct
then either take the risk of selecting it or leave it. By using this trick, we can eliminate some answers so probability of accuracy increases. Afterall, no trick is remedy of every problems otherwise it would have been adopted as general method.
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Thanku
Yeh tricks bahut acha he sir bahut bahut thnks
plz sove digital root of 43/22
its correct option is 1.95
i m nt able to solve it by digital root
4
Option D i.e 96 is correct as the digital root on both sides of equation is 9
Sir supper👍
Thanks for nice words.
i think u r best teacher in india
Sir Meri quant ki calculations speed acchi nahi thi par aapke videos se bahaut help milti hai
its my pleasure, Siddharth Jain. Your welcome !
Thanks sir
Option 4.. 96ans
√1256.25 I face difficulty
Ignore .25 and solve it
Sir please solve this question by digital root method, (4.78% of 1255 +3.24% of 4400 =2.5% of x), option is a) 8000 b) 10000 c) 6000 d) 7000 e) 8500
digital root arithmetic is given as
1x4 +9x8 = 7x ans
4+9= 7x ans
4= 7x ans
option d has digital root 7, so put 7 has ans in above equation
it becomes 4=7x7
4=4
so d is answer
Note: if answer is given as approximate values then we can't find answer using digital roots. ( I have explained this in video; digital root works only for 100% accurate values
Thank u so much sir
SuccessRisers sir approximate answers mtlb.....
For example, 72.34x34.2= 2474.028 is 100% correct answer but you take 2474.02 then digital root trick is not applicable.
optionD
Answer of 43776 % 456 is option (d)96
d ans is right
very nice sir....😊😊
sir kya large numbers ki ratio findout krne ka bhi koi trick hai ?
801÷10÷0.45=?
a-172
b-178
c-174
d-176
Book ans diya hai( b )kya ye sahi hai
sahi hai
sahi hai
Bilkul sahi hai bhai..
hello sir please help me in this question how to solve
(84*x=8064*2 )options are 184,186,188,190,192
take digital roots on both sides
3* x = 9*2
3*x= 9
now if value of x is 3 then 9==9 condition will be satisfied. So 192 has digital root 3. so this will be answered.
SuccessRisers but sir 186 too give us 6 after which 3*6=18 =9 why not this option???
You are right but in some questions, where there is more than one option has similar digital roots then we guess its answer using unit digit method.
here 42*x= 8064
now x = 8064/42 you can guess that unit digit will be 2, not 6
so, if there is more than one option has same digital roots then don't apply this method. But before quitting try to guess answer using unit digit if helps that way.
SuccessRisers oky sir Thanku
SuccessRisers sir please can u solve this ques for me
(23.16% of 1254) - (16.6% of 834)=x
options 159.5,157.5,155.5,153.5,162.7 please
1380/380.92= ?
Explain me this for this type of model's
is it applicable for this? 78.54/0.03+22.8/0.8-1470×1.25 = ?
options :
809
807.5
805
802.5
801
Hi Amritpal Kaur,
don't apply in such type of questions.
because here, the division is involved so it will become complex.
and also, the answer is an approximation. So, digital root does not work for approximate values.
I mean if 100% correct answer is e.g 3.3446 and if we round off it to 2 decimal like 3.34; then also it is approximate value and digital root would not satisfy it.
ok sir..
please slove it. under root x , + 14 =√2601
Sir please show me how to solve this 73922/23 = ?? I have taken the num as 739/23, then taken approx. as 700/20 = 35, then I did 35×3 = 105, then 739 - 105 = 634, then 634/(2×10) = 317/10 = 31.7. And the correct ans is 3214. Please Sir guide me...
l
What to do for
9 = y × 9
Y ki value 1 ayengi
बडी संख्या के भाग के सरल तरीके वाला वीडियो भेजे
sir plz provide solution for how to divide any number by 9 easily...?
Hi NIkita Vadher , 9 se to aap directly divide kariye, isme kya trick ki jarurat hai? waise ek trick hai 9 se division ki but directly division me bhi bahut kam time lagta hai
SuccessRisers sir aisa ho sakta hai kya ki agar ham denominator me 10 assume kar ke easily divde kare jaisa trick apne division me bataya tha us method ko apply kar ke find kiya ja sakta hai???
bilkul kiya ja skta hai.....lekin approximate value me jyada error mat lena....nahi to answer me error jyada aayega...but agar aap approximate value ko exact leti ho to fir normal division me aur is trick se division me same time hi lagega..
ye trick large number divisions me time save kar deti hai approximately close answer nikalkr
For example- 12101/9= ?
approximate value per unit is 12000/10 = 1200
(12101+1200)/9+1 = 13301/10 = 1330.1
value exact karne ke baad bhi value correct nhi aa rhi hai..iska answer 1344.55 aa raha hai....kindly explain this example by using ur trick....plz sir
answer close to aa rha hai....isse jyada accurate lana hai to approximate value ko aur jyada accurate karo...like take 12141/9 = 1349 ( maine 12141 isliye liya taki 9 se divide ho jaye)
now add 1349 in numerator and 1 in denominator
it will become 13450/10= 1345 it is approximately correct
In Example 1, since .36 > .256, your answer must be larger than 1 so you know choice B can be ignored.
Option D
96 boss...u r d boss man...
5*?=4808÷8 option 120.2 102.2 dono ka digital root same h kaise choose kre pls
if digital root are same then this trick does not work...but you can eliminate some options and increase your chance of accuracy.
d)96 is the correct option..
Best trick
accha hai
21.9%of650=?+23.12
A.121.23 B.109.23 C.119.32 D.129.23 E. Other than those given as options
Santu Das option c is correct. if I am wrong please correct me.
Bhai, But digital root se nhi aega ans..
C
Bizank
Correct Answer is option D) 96
nice but sirf approx m value nikal sakti h exactly ni
Hi, Ganesh Silodiya, Digital roots does not work for approximate value.
Didn't understood
Agr option n.o.t rahe tb kya kaenge??
then either take the risk of selecting it or leave it. By using this trick, we can eliminate some answers so probability of accuracy increases.
Afterall, no trick is remedy of every problems otherwise it would have been adopted as general method.
D
ans d 96
d
Sir banking me 5th option none of these b hota h.
Fir us case me kya kare
506142÷927=546 your digital sum trick not working here
92 is right
D thanku sir
96 ans
Sir pls apni pronunciation sudharo ans-warr nhi hota h na hi tharr-teen hota h
Apki pronunciation sahi nhi h, concept sahi h pr ap ulta pulta bolty ho,
@@kailashpatel7898 kami nhi nikal ri sach bta rhi hu, ki inko apni English pronounciation pr sudhar krni chahiye.
96 is ans
96
Sir please apna watsapp no provide kare
d
D
96
D
96
96
96
96
96
96
96