Permutations and Combinations - Formulae | Don't Memorise | GMAT/CAT/Bank PO/SSC CGL

[@InfinityLearn_NEET]

#DidYouKnow: Total number of selections of zero or more objects from n identical objects is n + 1. To access all videos related to Permutations and Combinations, enroll in our full course now: infinitylearn.com/cbse-fullcourse?KZbinDME&J2IWwbSbN4M&Comment To watch more Permutations and Combinations videos, click here: bit.ly/PermutationsCombinationsVideos_DMYT

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Can you answer the DIDYOUKNOW part with an example??

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Expanding probability series for giving value (10-x)!=10!/55 What is x How I found out that uncertainty with certainty and show that pdf or working equations in excel spreadsheet so we

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very few people have the ability to teach properly. you are one of them. thank you for teaching us.

[@InfinityLearn_NEET]

Thank you Rana :)

[@kundankumarkashyap2693]

I had done my graduation in maths from the university of Delhi, but I was not so much comfortable before, with the concepts of permutations and combinations. Although I easily calculate the problems based on formulae nPr and nCr. These videos have well designed to telling the tough concepts in very simple ways. Thanks and god bless.

[@InfinityLearn_NEET]

+kundan kashyap , thank you so much :)

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GREAT EXPLANATION .....i was facing a lot of problem during a class ...but after watching these videos...i hope i will never face any problem inshALLAH...thanks alot....

[@InfinityLearn_NEET]

🙏

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2 hours ago* "What the heck is going on with counting. I hate it!" Now* "God i love these they're so easy" That's a result of binge watching these videos. I couldn't recommend this series enough to anyone who feels counting is too difficult for them to understand. You'll get it after these videos. Thanks for everything :)

[@InfinityLearn_NEET]

Glad you liked it! Please subscribe to our channel: bit.ly/DontMemoriseKZbin Happy Learning :)

[@vijaymishra9153]

This video was posted 8 years ago but I cannot help admiring the teaching style- simple and to the point. Absolutely loved it ❤❤

[@HarishST]

I always have problems with Permutations and Combinations. I found this channel as Best (Yes! The Best :) ) for everyone who want to master the topic for the rest of their life not just for the exams. Great Work ! Simply Better Than Every Channel Out there...

[@sarveshsingh1302]

This was the best playlist I had ever come across on P&C. I started enjoying mathematics again.. And P&C is becoming one of my fav topic because of you guys. Before this I had to memories the formulae and will not really get the meaning of it, and eventually forget the formula. but now I don't even need to remember it it's just like I am making up the formula myself. Sincerely Thank You.

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Hi I'm a senior High school student from Ghana and this video has been very helpful to me.Thank you

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I just can’t believe it .............how can somebody teach so well .Thank you. 🙏🙏

[@hamoodibeats1944]

1 day before my exam hopefully ill pass. thanks for this amazing and wonderful teaching.

[@nurulwahida9049]

Thanks u make me realized actually it is much easier to understand rather to memorize

[@zeliksonnn]

i have been struggling with this now its SUPPER clear thank you !

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👍

[@manyquestionsonesolution]

After seeing your video the topic is crystal clear . Thanks a lot 😘😘

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uncomparable study method , i appreciate. nice way to help others more effectively.

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Those dislikes are from school teachers.

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nelson tan School teachers hate them.

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your videos are the best for permutations and combinations ! (y)

[@nanzownzu]

Thanks for the video. It was helpful and I don't intend to complain but I was hoping for some sort of proof on the formulae as well somehow because it says "Don't Memorise". For anybody interested and looking for the same thing as I was. The Permutation formula can be derived from the combination formula at least. Assuming when you select n people out of r people, that is C(n,r). Now if you want to arrange these people in r seats, the first seat can be occupied by r people, 2nd can be occupied by r-1 people, 3rd by r-2 people and so on until the last seat that will be occupied by the last remaining person. So the way to arrange these people over r seats would be r*(r-1)*(r-2) .... 1 = factorial(r) . That is why P(n, r) is C(n, r) * factorial(r).

[@VG__]

0:50 selcting R things out of n 1:24, 2:30 order doesn't matter 4:21

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You are doing a great job...I’m really impressed with the way you explain things !!....All of the videos are so well explained and in detail...Thank you so much !!

[@InfinityLearn_NEET]

Thank you Darshan! Don't forget to subscribe to our KZbin channel : bit.ly/DontMemoriseKZbin Happy Learning :)

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Thank u so much😊from Kerala!

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[@InfinityLearn_NEET]

Thank you for your kind words Vaibhav. And a bigger thank you for taking time out to comment :)

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Excellent teaching method.

[@AnonyomousKING]

I always confused these two and couldn't understand what this order is, Now thnx to this video my confusion is over.

[@himanshugarg2030]

Thanks a ton for this video. Now I am crystal clear with the concepts of Permutations and Combinations .

[@InfinityLearn_NEET]

Glad to hear that Himanshu :)

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Thanks mam. its very helpful to understand easily

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Thanks a lot mam for explaining this chapter neither i understood in 10th , 12th , or even during my college but i now do as clear as crystal thanks a lot mam

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I deeply appreciate these videos, dhanyavaad :)

[@InfinityLearn_NEET]

Most welcome, Braadwell! Thanks for your appreciation! Happy Learning 🙂🙂

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Very well explained😍

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Thank you very much for the appreciation and for watching Meghna. :)

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Very understanding thank u

[@InfinityLearn_NEET]

You're most welcome Divya. We are glad that you understood the concept. We are happy that we could help you learn. You motivate us to do better. Keep watching our videos : )

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Explained very good..

[@InfinityLearn_NEET]

Thank you for your kind words! We really appreciate your compliment :)

[@harsh3617]

I have one doubt. In the previous video - Football question, we used 6!/2!,and in that question we needed to arrange vowels and non vowels. Going by the arrangement formulae:- Shouldn't it be 6!/(5-2)! i.e 6!/3!, instead of 6!/2!

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harsh L has a repetition

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Please also make a vedio on "How formulae of permutations and combinations are formed? "

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Good job 👍

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A helpful video. Thank you.

[@InfinityLearn_NEET]

Most welcome, Maths Tricks! Happy Learning! 🙂🙂

[@sifisoleema2074]

There are 30 pupils in a class. 1.you make a row of 7 pupils. In how many ways can this be done? 2.you divide the class into two groups of 15 each. In how many ways can this be done? 3.you give each of the 30 pupils one type of cool from 5 different types of cool drink. In how many ways can this be done? Please help

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Concept is crystal clear

[@kcseanbrixd.calinao6700]

The way you teach is amazing I'm learning a lot but may i ask what is the formula for? i know I'm getting ahead of myself here but I'm just wondering, can't we just use simple counting principles like, instead of the permutation formula 10!/(10-3)! . why cant we just use 10 * 9 * 8. Its much easier, right? am i not getting something here??

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[@InfinityLearn_NEET]

Thank you Mayank :)

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[@InfinityLearn_NEET]

Thank you so much Bandana for your appreciation. We are glad that you understood the concept. We are happy that we could help you learn. You motivate us to do better. Keep watching our videos : )

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[@InfinityLearn_NEET]

Thank you so much Alisha for your appreciation and Thanks for the visit.😀 We are glad that you understood the concept. For more videos, please visit our website - dontmemorise.com/

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[@InfinityLearn_NEET]

Most welcome, Ricky! Glad our video could help you. Keep watching! 🙂🙂

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Thanks mam for this lecture

[@InfinityLearn_NEET]

It's my pleasure Kamalraj. We are glad that you understood the concept. For more videos, please visit our website - dontmemorise.com/

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Helpful!

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[@InfinityLearn_NEET]

You are welcome, Arushi! Happy Learning!! 🙂🙂

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Finally you want me to memorize the formula!😄... you didn't reach how the formula was derived

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[@InfinityLearn_NEET]

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