Averages 2 | CAT Exam Preparation 2024 | Arithmetic | Quantitative Aptitude
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- เผยแพร่เมื่อ 7 ก.ย. 2024
- CAT PREPARATION 2024 I QUANTITATIVE APTITUDE PREPARATION for CAT 2024
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I recently found this playlist from Shweta Mam's video. It's literally a goldmine for CAT aspirants.. better than paid classes..
Yeah bro
Literally it is ♥️🙏🏼
Mee too
Yes bro
@@vishnurajan7706 bhai waise questions kitne solve krne chahiye ek chapter ke upr quants me??
CAT one class charges over 500rs. But this guy is giving these lessons for free, not to mention the quality is same as any coaching class would provide. Hats off
15 people avg 48 = 15*48 =720kg, now 16 people as 1 joined , so 16 *49= 784 , diff = 64 kg (the person who joined)
dammn i also applied same concept ... hope it works in all the questions
Thanks for this concept
Good logic 👍😇
Good 👍
What if another person joins? 17+48 or 64+17?
Highly underrated playlist.
I have gone through many but if you want crystal clear concepts, this is the best on internet
@23:00 -- alternate
Avg weight without heavy student = 60 - 2 = 58 kgs
Therefore, Heavy student weight = 58 + (40 * 2) = 58 + 80 = 138 kgs
He makes maths so easy and interesting! The way he explains is so simple yet on point!
If you want crystal clear concepts, these are the best videos you can find on the internet! Period.
keneka gol tumar exam , where did u took admission😃
Directly landed on these videos from Shweta Mam videos.Really so helpful for CAT Aspirants.Initially I am very confused what to read and what not and also confus
ed due to large no of videos on youtube how to read them but these playlist are the solution of each question,And also a valuable things for those who can^t afford expensive coaching classes.Thanks alot SIR for providing these videos absolutely free of Cost.
shortcut for this questions is Avg + (increase or decrease in Avg X total new quantity) = 48 + ( 1 x 16 )= 64
Avg = Total weight of 15 students/ 15
Let total weight of 15 students be T
SO, it is given initial Avg = 48
Therefore ,
48 = T/15
So, T = 720
Now when 16 th person joins avg weight inc. by 1 and becomes 49
Similarly , we can write
Avg = Total weight of weight of 16 students/16
OR
Avg =
(Total weight of 15 students+ weight of 16th student) / 16
Let weight of 16th person be x
Now,
(T+x)/16 = 49
Keeping value of T from above
x = 64
Much more straight!🤌🏻💯
time taking
This method is logical and straightforward too, but Ravi Sir's method can be done without even taking pen and paper, so that would be better in the long run
27:04 Sir I can guarantee this moment changed many things for hundreds of students....
YOU DONT HAVE TO WRITE, TO GET IT RIGHT...a true example; every teacher just says it or just do half of the que orally
Thank you for helping so many of us. We owe you a lot!
Never ever seen this kinda Fastest method with concept of average, when some one leave or join the group.. Great Sir..❤️
I am from an engineering background and consider myself to be good at quant and dilr, but Ravi sir has not only shown me how little I knew but helped me learn concepts and tricks very easily. Kudos to you and your team sir. Blessing in disguise❤.
Found this series from sweta mams video , thnks to her ❤😊
i dont know wht i would have done without you sir!!! very neatly explained ......
For sales question::. a=348 ,d= 16 , nth term = a+(n-1)d
12th term = 348 + (12-1)16
Sir my utmost respect to you
I bow at your feet
You are my best companion in this new advent
Great thanks sir!
Salute to your all great efforts of explaining concepts so beautifully...
Using small brush for indicating no. and then switching to color pen repeatedly with so patience....
Sir got your video from sweta mam video....Thank you for explaining so well....
Bhai iss playlist ke alawa kahan se padh rhe ??
Re-attempting all these questions is now super quick and simple after watching this and next video. Very helpful!
in the 3rd question if you understand the question its so simple - its just avg + total strength which is avg of 15 is 48 and now 1 person joined now total strength is 16 hence 48+16=64 there you go
This will gonna help a lot of people, very nicely and easily explained series. Thankyou very much Sir!
You are a true saviour .A geniuse! Every level of student can understand your teachings.
I don't think even Cochin could explain so beautifully the way u explain
solved it in within 15 sec. Damn sir you are good.
03:50 Understanding the pattern of averages
07:40 Understanding the concept of averages and identifying missing digits
11:30 Calculation of average weight in a group
15:20 Understanding the concept of average weight in a group
19:10 Finding the adjusted average weight when a new person joins a group
23:00 Finding the weight of a person joining a group given the average weight increase
26:50 When a heavy student leaves from a group of 40 students, the average weight of the group decreases by 2 kg.
30:37 Finding the age of the teacher in a class of 24 students and one teacher
Can't believe, this is such a good content for free!!. God bless you so much sir!
Alternatively, you can also do the weight question by the following method. Although yours is quite quick, but I solved it the following way initially.
(t1+t2+....+t15)/15 = 48 ------- CASE 1
(t1+t2+.......+t16)/16=(48+1)----- CASE 2
from case 1 => t1+t2+...t15 = 48*15 = 720
from case 2 => t16 = (48+1)*16 - (t1+t2+...t15)
=> t16 = 784 - 720 = 64.
Just extremely thankful for providing such quality & knowledgeable content for free!
Amazing channel started my prep last week and its helped so much.
It's unnatural how I get teleported to previous exam halls where I had struggled solving these questions 😢 Sir , Words are not enough to thank you 🙏
Found this video from shweta arora playlist. Thankyou for clearing the concept
Sir, you make me feel like teaching is also an art.. Neatly Explained thanks...
Q.The avg weight of a group of 15 friend inc......
Ans:- 15:- 48kg
16:- (48+16) = 64 easy steps
Very neatly explained.. Thank you... Helping a lot!!
Thanks
16.42 AGE OF NEW COMER= PREVIOUS AGE+(NO OF PERSON *INCREASE IN AVG AGE)=48+(16*1)=64 ANS SOLVED IN 1 MIN USE THIS FORMULA FOR THESE TYPE OF SUMS
Simple ways
If 48kg is average of 15 people
So total weight = 15*48 = 720
After a new person come it becomes 49
Total weight= 16*49 = 784
Hence new person weight = 784-720 = 64
I respect your efforts to teach but this tricks sometimes irritates students minds in exams
thankyou so much sir for your hardwork
Complete clarity of the topic ..
You explain the short tricks very well sir .
Well done.. thankyou 🙏🙏
Or u can directly do by this
If
15 - 48
16 - 49
So increase is 1kg
When total no. Of students/16 = 1 so weight increasing by 16 kg.
So 16th person weight is 16+ 48 = 64
Sir has done the same thing though!
Sir, for the star question, I have tried to generalize a formula
F = A + N * C
where F is the final value that is calculated a/t to the question, A is average, N is the total number after anybody leaves/joins, and C is the increase/decrease in average.
For Q1:
F = 48 + 16 * 1 = 64
Sir, please correct anything wrong with this approach.
TEJASWI LOG
1:36 here can anyone explain me why we changed to 1+11+....... insted of doing 9+99+999+.....
Please let me know this
same
Because we have divided each term with 9. So 9 becomes 1, 99 becomes 11, 999 becomes 111..and so on!
Thankyou sir.. very neatly explained. Thanks for providing it for free
"absolutely unleashed" kya baat
Tq @shweta arora diii fr this excel sheet
Weight of the avarage group decrease by 2kg why don't we take S40-2 =S38 why we take S39 only??
Sir you are very sweet and calm while teaching tough topics ..Thanks a lot
Do share more content like this
Best teacher 🔥🔥
Guys just help me out … will this playlist be enough for upcoming cat……
Bilkul
thank u sir for giving such amazing short cuts 👍 was grt help!
Thank you sir for the wonderful videos❤️ Your channel deserves much popularity🙏
at 28:38 Sir said, avg wt of 24 stud and teachers at place of age😅...but thankyou sir and i salute you for your effort that you did, just to make us undestand the concepts easily...thankyou sir, u r great❤
You deserve a lot of subscribers as well as recognition
4:00 8:00 18:00 26:00 30:00
Can anyone help me how to prepare quant using this playlist , after watching the videos of one topic say averages should i practice solving questions from that topic and move to next topic ? If so , are there any free resources for practicing topic wise questions or should I use arun sharma quant book
Sir in first question why you cannot apply first +last divided 2 formula?
It's not in a.p.
i broke my mug by hapiness to see the action of Sir at 16:29
sir in 13:22 question. In these questions like these i use the method as =new avg weight(49) + {increase in weight(1) * no. of people in initial stage(15)}= 64. Is it correct??
Nice explanation sir....
Thank you. If you like the channel please share among the friends who are preparing for CAT exam
on the behalf of all the aspirants of ipmat , cat ,xat .... dandvat pranam sir
Is your da section enough for cat? I m just depending on your videos for my preparation...plz guide....
Yes very helpful
got it from shweta arora madam...superb
Thankyou so much sir 🙏 with your teaching it made me feel like I'm not just an average student.
Rodha Sir ❤
Thank You So much Sir.. nicely explained
please keep on doing the great work sir!
Sir yr all videos are Awsm.. thanks a lot sir.. please make more new videos sir.. sincere request sir.
Sir following all your videos!Thankyou for all this free content. Can you please add all lrdi videos to your course it will be a really big help.
SIR PLEASE UPLOAD THE 3rd VIDEO OF AVERAGES ASAP.
th-cam.com/video/lxCGzzUZBj8/w-d-xo.html
New person = New average +(old observation * Change in observation )
Thankuu sir i am glad that i found u as my teacher 🙌
At the time of joining of one people we are adding +1 to that people also so at the time of removing one people why we are not removing -1 or -2 (according to the problem) from that people
Sir u are damn good in teaching and clearing the concepts❤️
Ina problem of 15 student, it's mentioned... 15 students when 1 student joins ... Which means earlier their should have been 14 people no..
mind blowing technic sir hats off ❤🔥❤🔥💥
Thanks a lot sir 💓
Sir, where is arith lecture 10? Can't find the same sir. Also, thanks for such good qus and solu!
th-cam.com/video/lxCGzzUZBj8/w-d-xo.html
thankyou sir and Shweta Arora ma'am.
amazing playlist sir but didnt get last ones concept?
Thank you so much sir for these awesome classes.
@8:18 16*11=176 not 196 if someone got confused
excellent sir. thank you so much
excellent content
Thank you, sir. Eagerly waiting for silver plate🌼
Amazing ❤️🙌
Hats offf to u sir ... what a concept
best videos i have ever seen sir
Great help sir
Thanq sir
am i wrong for doing it like 1+15/2=8, so the 8th friend has 48kg weight. so when 16th friend comes 1+16/2=8.5 and 8.5th friends weight becomes 49 since 8.5 doesn't come when we count from 1 to 15 so this becomes a pattern like 8th=48 8.5th=49 9th=50, which eventually tells us that 16th friend's weight is 64.
thank you so much for your insights ❤️
sir , you made it very easy.
thank you
The average weight of 40 students is 45kg. If teacher is included and one student is excluded, the average weight increases by 1kg .If the weight if excluded student is 40kg. the weight of teacher is ? Please answer using method taught by sir.(Equal Distibution) As im getting answer as 85Kg and right answer is 80Kg. ?
same doubt reply me if you get answer
Sir your teaching is excellent
The average marks of a class of 33 students, increases
by 3, when three of them leave the group. If the average marks of these three students is 1/4
average marks of the original 33, then the average marks of the remaining 30 students is?
Please help in this question @raviprakash sir
Thank you sir..........
Very useful shortcut sir
Thank you so much sir to cede this miracle to us.
Thank sir ❤
THAANKS ALOT SIE! FOR tHESE BEAUTIFUL CONCEPTS!😇