CUBES 2 | CAT Exam Preparation 2024

CUBES 2 | CAT Exam Preparation 2024 | Logical Reasoning

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6 жыл бұрын

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Пікірлер: 196

@avanishsinghchauhan691 3 жыл бұрын

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 Жыл бұрын

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

@kanwarpamnani3780 Жыл бұрын

which coaching classes did you join?

@adith258 Жыл бұрын

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

@sudhanshushekhar4710 10 ай бұрын

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

@harshitarao2619 7 ай бұрын

Which college uh get into

@DADDY-do3ys 10 ай бұрын

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 10 ай бұрын

Wow

@chaturvedinirmal Ай бұрын

thanks

@Harjot-zh5nd 7 ай бұрын

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

@sohamkarmakar9108 3 жыл бұрын

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

@shakyasachinkumaratarsingh7266 Жыл бұрын

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.

@sachinsemwal8317 2 жыл бұрын

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 Жыл бұрын

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

@natwarkalwani4184 Жыл бұрын

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

@ShreyashPatil1811 Жыл бұрын

@@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 Жыл бұрын

@@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 Жыл бұрын

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

@ipsitahalder2981 4 жыл бұрын

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

@jaishikagupta2580 4 жыл бұрын

Could you please explain that no face painted formula

@harshitatyagi646 4 жыл бұрын

Could you please explain me non painted formula?

@RavindraKumar-pm6yi 3 жыл бұрын

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 3 жыл бұрын

How can v get the full course??

@mohdrayyan8296 Жыл бұрын

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

@priyankaagarwal244 3 жыл бұрын

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

@datawitharyan 3 жыл бұрын

One of the gems in teaching industry

@tabish3379 Жыл бұрын

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 Жыл бұрын

Thanks 😊👍🏻

@hanshuljhanginia2351 4 жыл бұрын

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

@KakshaAPlaceToLearn 4 жыл бұрын

I was also thinking about the same

@prashantrahangdale1132 4 жыл бұрын

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 жыл бұрын

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

@snehabhat4876 2 жыл бұрын

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

@shreyasingh1820 Жыл бұрын

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 Жыл бұрын

Ekdum. Promise:)

@shubhambhatt2704 3 ай бұрын

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

@siddharthverma3607 Жыл бұрын

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.

@sunnyjha3023 3 жыл бұрын

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

@pocketstudies 3 жыл бұрын

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

@jyotiranjannayak7992 2 жыл бұрын

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

@itseasy3586 3 жыл бұрын

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

@adith258 Жыл бұрын

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

@sureshgarg6457 2 жыл бұрын

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

@sambhajiBhosale-hx2qt Жыл бұрын

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

@yashisrivastava5784 Жыл бұрын

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 жыл бұрын

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 жыл бұрын

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

@hS-et1wy 4 жыл бұрын

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

@anmolsharma9397 4 жыл бұрын

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

@hS-et1wy 4 жыл бұрын

@@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 жыл бұрын

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

@priyanarayan8755 3 жыл бұрын

Ravi sir is always the best.

@Classicsdaily 10 ай бұрын

This channel indeed deserves 600k+ subscribers.

@arkithroy951 Жыл бұрын

Ravi sir, ur explanation is at next level.

@yshanroy2264 4 жыл бұрын

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

@riyajangid5567 11 ай бұрын

Thank you sir for explaining the concept so clearly! 😊

@sonukushwaha8265 3 ай бұрын

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

@vibh_dixit Ай бұрын

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

@luciddreamer4752 2 жыл бұрын

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

@kritipoddar7446 4 жыл бұрын

wow.. thank you for such amazing videos :)

@nikhilpant6428 Жыл бұрын

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

@manoramamallick8958 4 жыл бұрын

So brilliant teacher giving quality education

@anmolsharma9397 4 жыл бұрын

that too fo free

@parthgarg7835 3 жыл бұрын

Brilliant way of teaching sir ❣

@poojakhattar4241 4 жыл бұрын

great concepts, hats off :)

@vaibhavtomar1570 Жыл бұрын

Cant believe getting all this for free of cost.

@shrabanimishra7791 8 ай бұрын

Thank you Ravi sir. I got the concept❤

@siyabhanwal Жыл бұрын

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

@sonusah1737 3 жыл бұрын

Thanku sir,your explanation is really great

@foot4football7 7 ай бұрын

Great thanks @rodha

@sidhuroutray3881 Жыл бұрын

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

@Mindfulhearts. 11 ай бұрын

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

@aloksingh4244 Жыл бұрын

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 Жыл бұрын

😂are thanks!

@tanmaychandra9434 3 жыл бұрын

You are simply a legend

@vipuljain8715 3 жыл бұрын

Best teacher ❤️

@arpitapaul6353 Жыл бұрын

Great explanation. Thank you sir

@nikhilgupta9722 10 ай бұрын

I am speechless.

@sanket2435 3 жыл бұрын

U can also tell by total -painted= unpainted

@anweshabharati8987 26 күн бұрын

Sir, you are the God 🙏

@achyutawasthi18 2 ай бұрын

Thank You So Much Sir for this fruitful session ❤️

@riyamayekar4449 3 жыл бұрын

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 жыл бұрын

i thought the same

@nishasao1881 Жыл бұрын

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

@sanket2435 3 жыл бұрын

Grt work

@vedantgolash6084 Жыл бұрын

amazing concept

@laxman9550 Жыл бұрын

Excellent!

@kaushikpramanik2204 Жыл бұрын

one can only appreciate, nothing else

@akshathole6641 3 жыл бұрын

Great content , Do more on new 2021 , 2022 pattern

@subhamnaskar1998 4 жыл бұрын

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

@saumitragautam8333 3 жыл бұрын

Thank you.

@ManuSrivastava_ 2 жыл бұрын

Thank you so much sir.❤❤

@Manika_legaltopia 4 жыл бұрын

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

@satyamjha8553 Жыл бұрын

thank you sir

@avinashpendyala1998 3 жыл бұрын

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

@shashanknavandhar7150 2 жыл бұрын

Thanks a ton

@simplypsychology6114 9 ай бұрын

Happy teacher's day sir

@mohdrayyan8296 Жыл бұрын

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

@ashutoshsahoo8076 4 жыл бұрын

😎hats off sir

@cedrahsworld3474 3 жыл бұрын

Thank you 😊

@aayushdeo9143 2 жыл бұрын

Thank yu Sir 🙏

@nandanijha7579 3 жыл бұрын

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🙏

@shivangisingh3594 11 ай бұрын

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

@vanshuk1736 Жыл бұрын

Love you sir

@Rndom_TV 2 жыл бұрын

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

@kalammalik8998 5 жыл бұрын

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

@Harsh-vq4dl Жыл бұрын

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

@bhavyachemakurthi1310 4 жыл бұрын

Sir please increase sound system

@mrudhulaammu92 Жыл бұрын

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

@redcruze Жыл бұрын

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

@theintrovertspeaks4073 4 жыл бұрын

Kindly make a video with 8/10/11 cuts

@AditiPandey-nv2ye Жыл бұрын

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

@Rodha Жыл бұрын

Improved in recent videos

@akashsahu2878 3 ай бұрын

Please improve the audio

@vikasmaitreya1562 Жыл бұрын

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

@shivaniyadav6515 2 жыл бұрын

Sir aapne 9 cuts hi ku liye first m?

@zairafatima1742 11 ай бұрын

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

@AmanKhan-cr7pt 3 жыл бұрын

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

@kartikarora2443 4 жыл бұрын

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

@aditisrivastavaas3177 3 жыл бұрын

Ha yrr 😑😑

@nitishjha8127 3 жыл бұрын

I also want to know 😂

@abdulalmaz8349 3 жыл бұрын

its basic factorization search it on KZfaq

@ArpitSingh-dz7gt 3 жыл бұрын

Cube root nikaal ke Uske aas pass ke number dekho

@sumitrawatofficial5755 3 жыл бұрын

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

@BittuQuill 11 ай бұрын

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

@user-by9kb8ur8c 3 жыл бұрын

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

@hannahanneabraham97 2 жыл бұрын

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).

@abhijittupe8 2 жыл бұрын

SIR MAKE VIDEOS FOR 2021

@Shashattttt 4 жыл бұрын

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

@hannahanneabraham97 2 жыл бұрын

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.

@naveenharod6070 3 жыл бұрын

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 жыл бұрын

You can do that.

@govindrituraj1816 2 жыл бұрын

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

@anirudhdalvi3569 2 жыл бұрын

Didn't understand the last concept of no face painted.

@vaishnavigurav7047 Жыл бұрын

Simply minus 64 total pieces -(24+24+8)ie. Colour pieces. So the ans is 8 cubes with no colour

@anushkasingh8900 Жыл бұрын

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

@Rodha Жыл бұрын

Yes. Great concepts

@amanagrawal7030 3 жыл бұрын

This topic is extreme helpful for me

@shivaniyadav6515 2 жыл бұрын

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

@_Bavyaajain Жыл бұрын

Sir I couldn’t understand this concept

@behindthescene4406 4 жыл бұрын

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. Ай бұрын

Same thought