CUBES 2 | CAT Exam Preparation 2024 | Logical Reasoning

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CAT 2024 || Verbal Preparation
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CAT 2024 || Quantitative Aptitude Preparation
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CAT 2024 | Logic Reasoning and Data Interpretation
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CAT PREPARATION 2024
How to Prepare for Quantitative Aptitude
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16 окт 2024

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Комментарии : 220

@avanishsinghchauhan691 3 года назад

After paying huge pile of money for books and fraud coachings, one is left with only disappointment.... But then Ravi sir with his video of Rodha Channel appears and takes away all the tensions of Quant, Lr, Di,etc and leaves us with full knowledge about each concept..... Thank you sir.... I can miss my coaching classes but never dare to forget watching your video even on a single day💝💝

@whosourav 2 года назад

How much did you pay in coaching classes? & Which bschool did you get into?

@kanwarpamnani3780 2 года назад

which coaching classes did you join?

@adith258 Год назад

@@mrunaldeshpande8972bro what did you mean😂 read what you said.

@sudhanshushekhar4710 Год назад

Has this playlist covered 100 percent lrdi syllabus????

@harshitarao2619 11 месяцев назад

Which college uh get into

@DADDY-do3ys Год назад

For those who are unable to find out zero faces painted , there is a simple trick i.e, subtract 2 from each of the lengths, breadth and height . taking the same example of the video L=4 peices, B=4peices, H=4peices , L * B * H (4-2) * (4-2) * (4-2) = 2*2*2 = 8 faces is not painted. Eg.-2 rectangle L=5peices , B=6peices , H=7peices L * B * H (5-2)*(6-2)*(7-2) = 3*4*5 = 60 faces not painted. HOPE YOU FIND IT EASY AND UNDERTANDABLE. BEST WISHES❤

@anushridicholkar2961 Год назад

Wow

@chaturvedinirmal 5 месяцев назад

thanks

@vrk9697 2 месяца назад

Thank u bhai

@ApurvaPandey-o9f Месяц назад

❤🎉

@sohamkarmakar9108 3 года назад

Content of this quality for freeeeee??? This is unbelievable. This is 'TEACHING' in its purest sense.

@Harjot-zh5nd 10 месяцев назад

For cube with pieces a x a x a 3 face painted - 8 2 face painted- 12(a-2) 1 face painted- 6(a-2)^2 0 face painted- (a-2)^3 Use the formula to save time in exam

@samratpatel8060 3 месяца назад

brilliant

@phenomenalguitars 2 месяца назад

What does '^' this mean...please reply

@atharva1256 2 месяца назад

@@phenomenalguitars I guess thats the symbol for division

@ArtfulTouches888 2 месяца назад

That's for powerrr @@phenomenalguitars

@ArtfulTouches888 2 месяца назад

@@atharva1256power

@shakyasachinkumaratarsingh7266 2 года назад

For no-paint we can also subtract the summation of all painted cubes with total no. of cubes. like , Non painted cubes = total cubes - all types of painted cubes sum.

@CoinGawd Месяц назад

nice udea

@ipsitahalder2981 5 лет назад

Brilliant work. i can now solve any cube question in 10 secs flat. Extremely thankful. Please keep up the good work!!

@jaishikagupta2580 4 года назад

Could you please explain that no face painted formula

@harshitatyagi646 4 года назад

Could you please explain me non painted formula?

@RavindraKumar-pm6yi 4 года назад

Here you go : consider the number of cubes with no side painted as the volume of a smaller cube(or cuboid within) whose edge layers are not consider. Thus, if a cube is a × a × a, then number of cubes with no face painted will be : (a-2) × (a-2) × (a-2) . Similarly for a cuboid with a, b and c cubes along the length , breadth and height respectively. Number of no face painted cubes will be (a-2) × (b-2) × (c-2).

@nikitaprajapati7628 4 года назад

How can v get the full course??

@mohdrayyan8296 2 года назад

Just substract all the painted cubes from total amount of pieces [ pov easiest way ]

@sachinsemwal8317 3 года назад

No face painted we can find more easily if we follow this. Just in Ques 2 we have 343 cube Add all the painted cude ( 3,2,1side) which is 218 - 343 cube = 125 unpainted cube

@ShreyashPatil1811 Год назад

Ye aapki wali method badhiya hai 3 2 1 minus total = 👌🏻👌🏻 Kyo ki mujhe wo sir ne batayi hui samaj nai aayi

@natwarkalwani4184 Год назад

@@ShreyashPatil1811 brother agar exam mai direct no face painted pucha toh kya pehle total face painted find kroge???

@ShreyashPatil1811 Год назад

@@natwarkalwani4184 Ek Set diya hoga to kam se kam uspe 4 question to puchenge hi? Warna it will be waste of time to solve such question bcoz reading itna lamba set doesn't make sense if they ask only one question

@natwarkalwani4184 Год назад

@@ShreyashPatil1811 You r right. But what if the no face painted arrives before every other question, my concern was that. Anyhow doesn’t matters do what makes u feel comfortable😊. All the best for you exam if you are appearing this year😇

@ShreyashPatil1811 Год назад

@@natwarkalwani4184Thank You & All The Best to You too if you are also preparing for this year's exam

@tabish3379 2 года назад

3 face painted= 8 2 face painted = 12(x-2) 1 face painted = 6(x-2)^2 No face painted = (x-2)^3 Where, x = Root cube (Total pieces) Or we can say , X= No of cubes in each edge *Valid only when cuts are distributed equally

@shubhasmitasahoo6723 2 года назад

Thanks 😊👍🏻

@phenomenalguitars 2 месяца назад

What does '^' this mean?...please reply

@Sumitkumar-oc8pm Месяц назад

@@phenomenalguitars power

@datawitharyan 4 года назад

One of the gems in teaching industry

@hanshuljhanginia2351 5 лет назад

no face painted = total no of cubes - painted cubes.. makes it easy as in last example 343-(8+150+60) =125. Thanks

@KakshaAPlaceToLearn 4 года назад

I was also thinking about the same

@prashantrahangdale1132 4 года назад

He is explaining in these way because if in question ask only for no face painted then we dont need to find for 1/2/3 face painted.

@jayshetty9008 3 года назад

It can also be solved by (n-1)^3 where n is no. cuts in one dimension...

@shreyasingh1820 Год назад

you are a sigh of relief for us students. please never ever remove your videos from youtube. we are really glad that we have you. thank you sir thanks a lot

@Rodha Год назад

Ekdum. Promise:)

@priyankaagarwal244 3 года назад

sir you are a great support to the children who can't afford coaching fees ...keep helping and guiding. May you get whatever you want ...from a student who is scared and feeling upset when I can't solve questions even after having coaching classes

@Srivastavayashi 2 года назад

We can calculate no face painted by using a formula-[x-2][y-2][z-2] where x y z are the no. of cuts in each axis.

@hS-et1wy 4 года назад

I would like to thank you for the efforts you put in to make such helpful videos and not asking for money for half of the course.

@anmolsharma9397 4 года назад

@HimanshiSethi what do mean by *not asking money for half of the course *...are these peoplecharging for the other half?

@hS-et1wy 4 года назад

@@anmolsharma9397 only half of the course is available on their channel

@anmolsharma9397 4 года назад

@@hS-et1wy so how can we get the full course?

@hS-et1wy 4 года назад

@@anmolsharma9397 there are many paid and free courses available on the internet. Also, you can search for individual topics on youtube related to the course.

@anmolsharma9397 4 года назад

@@hS-et1wy inhi logo ka full course kaise mil skta h?do u know anything about that

@shubhambhatt2704 7 месяцев назад

Had to watch this 3 times to get the proper visualisation. Thanks

@snehabhat4876 3 года назад

All coaching classes are useless. None of them give this level of depth and good explanation Thank you so much for these video.

@luciddreamer4752 3 года назад

This is the best class about cubes,so beautifully explained what I thought is an impossible section for me

@snehajha4169 18 дней назад

for non painted we can visualize that 4*4*4 cube becomes 2*2*2 by chopping off 4 outer layer!!

@manoramamallick8958 5 лет назад

So brilliant teacher giving quality education

@anmolsharma9397 4 года назад

that too fo free

@sinfulxsouls 2 месяца назад

I understood this concept after 5 years. I did CAT coaching in 2018/19 lol. THANK YOU!

@pocketstudies 3 года назад

Love from Telangana Can't express your consistency in ur Hardwork 🙏

@sambhajiBhosale-hx2qt Год назад

Awesome sir 🙏 you are doing well job for those student can not afford the expensive coaching. ❤❤ You make vary easy to each concept and make student understand in simple way . Whatever you teach about Quant, DILR easily understand to every beginner student. Thank you sir for providing such beautiful content related to CAT exam

@MissionIIMcalcutta Год назад

sir for no face painted we can also calculate by (total no of cubes - (1 face painted+2 face painted+ 3 face painted))

@riyamayekar4449 3 года назад

no face painted could have been directly calculated by max no. of pieces - the sum of 3,2,1 faces painted i.e 64- (24+8+24)= 8.....

@muskaanalvi5716 2 года назад

i thought the same

@nishasao1881 Год назад

everybody knows that🙄🙄🙄he is trying to explain purely and logically without use of any formulas so appreciate it

@jyotiranjannayak7992 3 года назад

good job sir , thank you for your effort you are putting in making these videos . helping the cat aspirants like a well wisher.

@nikhilpant6428 Год назад

26:25 Ravi sir's reason for why those cubes aren't painted is real :D

@aloksingh4244 Год назад

For no painted cubes just subtract total number of cubes from summation of all the painted cubes(any no of sides) together i.e in first eg -> 64-(8+24+24)= 8ans.

@dishamal5548 Год назад

😂are thanks!

@adith258 Год назад

I am gonna try without coaching institute by learning from you sir, i am going to prove my family that they are paying large money for the things that i can do myself . Sir you are my only hope

@akashsahu2878 7 месяцев назад

Please improve the audio

@sunnyjha3023 4 года назад

Able to understand cubes properly better tab class course... Thanks sir. You made cube easier

@sidhuroutray3881 2 года назад

sir its so helpful even for cat 2022 thanks a lot sir

@buZZooka99 3 месяца назад

Thank you Sir for explaining it so simply. That too for free😊😊

@siddharthverma3607 2 года назад

Sir you have simplified a very difficult concept and taught it in a beautiful way ... even if anyone is not preparing for the exams this lecture helped in improving my visualization power. Thank you so much for your efforts.

@sanket2435 4 года назад

U can also tell by total -painted= unpainted

@riyajangid5567 Год назад

Thank you sir for explaining the concept so clearly! 😊

@foot4football7 11 месяцев назад

Great thanks @rodha

@Classicsdaily Год назад

This channel indeed deserves 600k+ subscribers.

@sumitrawatofficial5755 3 года назад

again for no face painted 25 *5 =125 what is 5 here what is ??

@shivangisaxena9241 27 дней назад

god bless you sir, this lecture boosted my confidence so much.

@sureshgarg6457 3 года назад

The lectures are very well taught . Thank you so much for giving us so much of knowledge in free 🤗🤗

@redcruze Год назад

What if the pieces of cube is in odd numbers . How to solve those?

@vaibhavtomar1570 2 года назад

Cant believe getting all this for free of cost.

@SoK8265 7 месяцев назад

Sir you are genius, now i am enjoying aptitude vali maths.❤

@suhanirai1106 20 дней назад

how we got 8 cubes painted all 3 faces ? corner cubes m bhi 1 face painted nhi hoga n?

@kartikarora2443 4 года назад

Sir how do u determine the factors that are closest if u can pls describe those!

@aditisrivastavaas3177 4 года назад

Ha yrr 😑😑

@nitishjha8127 4 года назад

I also want to know 😂

@abdulalmaz8349 4 года назад

its basic factorization search it on RU-vid

@ArpitSingh-dz7gt 4 года назад

Cube root nikaal ke Uske aas pass ke number dekho

@vibh_dixit 5 месяцев назад

Sir, thanks a lot. You're the teacher in the truest sense.

@BittuQuill Год назад

sir instead of counting all those ,we can subtract 8+24+24=56 i.e., painted from total pieces 64 64-56=8 .can't we do this sir is this not the proper method

@vikasmaitreya1562 Год назад

How to solve painted cubes question if the number of cubes is 216?

@mrudhulaammu92 2 года назад

Sir when only 3faces pained out of 6..then how it is possible in 1st example

@shrabanimishra7791 Год назад

Thank you Ravi sir. I got the concept❤

@nandanijha7579 3 года назад

Sir for no face painted if we take face centered cube even after excluding both upper n bottom layer the new cube will have 1 face painted from the front....so how can we take face centered Sir please clear the doubt🙏

@AditiPandey-nv2ye Год назад

Brilliant work, but sir if possible kindly increase volume while recording videos. That would be really helpful.

@Rodha Год назад

Improved in recent videos

@shubhamshrivastav04 2 года назад

In the last ques , 7 cuts means 8 pcs or 8 layers....therefore 6 pcs on each edge with 2face painted...isnt it?

@shivangisingh3594 Год назад

I didn't get understand" no face painted concept".....

@siyabhanwal Год назад

Great concept... Thank you thank you so much sir ji... 🙏😊

@subhamnaskar1998 4 года назад

sir in the last example in the case given 2 faces painted ...shouldn't it be....(5*12)-8=52?...can you please explain?

@mohdrayyan8296 2 года назад

And sir what what if the pieces doesnt have exact cuts from each sides

@zairafatima1742 Год назад

sir mera college 2025 me complete hoga toh main CAT ka exam kab du? IIMs jane ke liye? Please help sir I'm very confused

@itseasy3586 3 года назад

Best teacher ever..!! Thanks a billion sir. Keep going 🙏🙏🙏🙏

@arkithroy951 2 года назад

Ravi sir, ur explanation is at next level.

@avinashpendyala1998 4 года назад

Sir your explanation is very nice....but the audio is not loud sir....

@kalammalik8998 5 лет назад

sir good explanation . i see 2 time and concept is very good clear .

@haripriyas2116 4 года назад

Guys, you can also use this formula:- 1. No face painted= (n-2)^3 2. 1 face painted= 6(n-2)^2 3. 2 face painted= 12(n-2)

@ritika9631 4 года назад

What is `n’ here? Number of pieces ??

@mindfullmallu7511 3 года назад

👍

@govindrituraj1816 3 года назад

Thnx for giving this formula

@behindthescene4406 4 года назад

Sir 7 cuts = 8 pieces removing 2 corner cubes = 6 6×12 = 72 ( two face painted ) ....I think it is correct sir ...if I am wrong someone plz correct me

@ashwinkashyap. 5 месяцев назад

Same thought

@scoringwolf Месяц назад

@@ashwinkashyap. this problem indicates the cube is divided into 343 small cubes, not cuts.

@achyutawasthi18 6 месяцев назад

Thank You So Much Sir for this fruitful session ❤️

@anushkasingh8900 Год назад

sir is this video is sufficinet because this video is 5 years back plzzz reply

@Rodha Год назад

Yes. Great concepts

@naveenharod6070 3 года назад

Sir why we cant find no face paintes face by substracting sum of tatal painted cubes from total no of cubes No face painted= total no. Of cubes - total no. Of painted cubes

@hannahanneabraham97 2 года назад

You can do that.

@user-by9kb8ur8c 3 года назад

in a cube ,why layer 4th is removed ?plkease do reply,we can also calculate no face painted by including layer 4

@hannahanneabraham97 2 года назад

To find cubes with no faces painted, we have to basically remove all the outer layers of the cube. Sir explains it by removing the top and bottom layers initially. So a cube with 4 layers has to have the first and fourth layer removed (since the cube is painted on those layers).

@yshanroy2264 4 года назад

I withoutAm a jee aspirant..this proved helpful for ugee exam..

@medharastogi 2 месяца назад

The best teacher ever.😊

@maahisingh273 Год назад

I didn't understand the concept of cube😭😭😭. Can I learn this?

@harshshukla882 Год назад

Sure let's study together

@arpitapaul6353 Год назад

Great explanation. Thank you sir

@shivaniyadav6515 2 года назад

Sir aapne 9 cuts hi ku liye first m?

@thesigmaexplainer Месяц назад

Should I buy any book for cat 2024 or should I watch all rodha playlist for varc dilr and quant and practice previous year paper I attempted a random mock and got 94 percentile I think that was a easy mock or what please give suggestions sir

@shivangisaxena9241 27 дней назад

just focus on sir, I also bought books, not worth until concepts are clear. book only has questions

@priyanarayan8755 3 года назад

Ravi sir is always the best.

@kaushikpramanik2204 Год назад

one can only appreciate, nothing else

@sumitrawatofficial5755 3 года назад

for 2 face painted it will be 48 as for each edge it is making 4 pieces two on one side and other 2 in other side so 12 *4 =48 or for each face the pieces are 8 and for 6 faces it is 48 help me out as my answer is different

@harsh6980 3 года назад

ur answer is correct sir made the mistake

@satishchodisetti7896 2 года назад

2 on one side ,other 2 on another face count as one , because they are consecutive to each other, when piece taken out it comes out as 2 pieces,hope u got it:)

@parthgarg7835 3 года назад

Brilliant way of teaching sir ❣

@poojakhattar4241 4 года назад

great concepts, hats off :)

@Manika_legaltopia 4 года назад

Sir u are making it so convenient for students like me🙏thanks a lot

@CHAITU28598 4 года назад

Can u share the whole notes in PDF format???

@manditbanthia7057 3 года назад

Make notes yourself

@akshathole6641 3 года назад

Great content , Do more on new 2021 , 2022 pattern

@theintrovertspeaks4073 4 года назад

Kindly make a video with 8/10/11 cuts

@nikhilgupta9722 Год назад

I am speechless.

@simplypsychology6114 Год назад

Happy teacher's day sir

@govindrituraj1816 3 года назад

1 face painted and No face painted samjh me nhi aaya someone can explain me

@sonusah1737 4 года назад

Thanku sir,your explanation is really great

@vedantgolash6084 Год назад

amazing concept

@AmanKhan-cr7pt 3 года назад

No face centre cube = number of cut in initial - 2

@Harsh-vq4dl Год назад

Ravi sir be erasing even a single extra dot on the board XD

@laxman9550 Год назад

Excellent!

@saumitragautam8333 3 года назад

Thank you.

@anweshabharati8987 4 месяца назад

Sir, you are the God 🙏

@shivaniyadav6515 2 года назад

M unable to understand this🥺🥺🥺i need help🥺🥺

@ManuSrivastava_ 2 года назад

Thank you so much sir.❤❤

@Shashattttt 4 года назад

What if they ask specific colour? Like no of red cubes or "No " red cubes?? Pls help :)

@hannahanneabraham97 2 года назад

If 1 side of the cube is painted red, then you need to find the number of cubes in a single layer in that dimension. i.e., if the top of the cube is painted red, the number of cubes in the top layer will be the number of cubes painted red. For eg. A cube of 64 pieces is painted red on one face. Number of pieces in a single layer is 4 x 4 = 16 pieces. Therefore, the number of pieces painted red = number of pieces in top layer = 16. Hope that helps.