One of the best videos on combinatorics ever!

You've a life saver! Your tutorial got me to overcome my childhood fear of P&C, which I was hesitating to confront since the longest time. Could you please do one on Probability too, if possible?

Dude i was getting lost in permutations n combinations and u really helped by showing everything in terms of multiplication and addition so i dont have to remember anything anymore. appreciate it a ton.

@evan.5967

3 жыл бұрын

Nice.

Thank you for this! Explained the concepts better than MGMAT for sure

So helpful, you’re an angel for taking the time to make this! Sums up combinations well for GMAT prep

Great video. Tip for others: for the last exercise you do not need to do any further calculations after having calculated the number of games for the first round ;)

This is the greatest mathematical explanation I have ever seen... no joke

Best Tut for this stuff! Makes you really understand it instead of just using formulas

Sir, you're truly amazing. You explained the topics in such a clear and concise way, so much easier to understand than almost any other video of this topic on the internet now. It's so much easier to understand "why" you solve a problem than just memorizing "how" to do it, and the slots method is by far the easiest method to understand! Thanks for the help, you're a grade saver!!!!

The quality of this video is so high, thank you!!

after going through a bunch of videos, this has been the best so far!!

@evan.5967

3 жыл бұрын

Great to hear!

I cannot describe in words how much you have helped me clear the difference between permutation and combinations. Please accept my sincere appreciation for your teaching method !

Hi Sir! I must say you are a life saver. Never before has this topic been so clear in my life. I owe you one..... Thanks a million and keep up the good work. Cheers! and Regards

I've been struggling a lot with permutations, combinations, and probabilities in the GMAT. I'm still not a pro but this video certainly helped a great deal in my fundamental (rather than formulaic) understanding of the concepts. Thank you so much for this!

I've watched several videos on probabilities and statistics and yours are the best in explaining these in a way that can be understood.

I bought Kaplan, and this was a much better explanation of how to attack these types of questions. Thanks for doing this video!

Super clear and well paced, and I say that as a GMAT tutor who also does combinations videos.

@Tomahawk1999

5 жыл бұрын

hey could you please solve this one? If the word “WOW” can be rearranged in exactly 3 ways (WOW, OWW, WWO), in how many ways can the word “MISSISSIPPI” be rearranged?

@SuperKidontheblock

4 жыл бұрын

@@Tomahawk1999 We have altogether 11 words and out of which we have S - 4 times, I - 4 times, P - 2 times , M - 1 time then we can take 11! / 4! * 4! * 2! => 36450.

such a sorted video about the topic i always found hard to cover. Great tutorial.

Really good method for solving combinatorics problem. Coverage of content was amazing to watch.

This is trully amazing and so clear. Thank you, thank you!!

awesome tutorial sir, you made each concept crystal clear!! Thank You

@evan.5967

3 жыл бұрын

You're welcome, Rohit!

Awesome video. I'm really grateful!

Amazingly clear explanation. Thank you so much!

@evan.5967

3 жыл бұрын

No problem!

This is so damn effective! Waiting eagerly for the video on Probability.

I am watching this to prepare for my freshmen year finals and thank you some much it super clear i recommended to my friends as well

Omg thank you so much! My GMAT is tomorrow and you are the only resource I’ve found that explained combinatorics clearly and concisely. Thank you!!

Great Video! Thank you very much! You really helped me understand the material!

This video is top quality! Thank you

He just simplified combinations into different way of calculation and people are in awe :D For example question 7 better answered by 10C3-6C3..

Thank you very much for the effort and work to help students. We really appreciate the great work you does. FROM WITWATERSRAND UNIVERSITY IN SOUTH AFRICA.

@evan.5967

3 жыл бұрын

Hope this helped!

You, sir, are a life saver

Thanks a million man. This was very helpful!!!

we need more videos like this.

Awesome work sir! very clear explanation. Thank You so much for making this so easy. I don't know why you just stopped with only one video but this is just gold! I hope you really get back on us. KZread is full of GMAT and CAT prep videos but I can safely say that those are all crap and discovering your's was just a miracle. Please make more videos. Your website does not work too. Please fix that and please help us.

@evan.5967

3 жыл бұрын

Thank you!

thank you so much for giving me a such great lesson on combinations

Very very helpful video. Great resource for those looking to improve at Combinatorics.

You’re a life saver indeed 😊

Your video really helped me to get a basic understanding of Permutation and Combination. Please make a video on Probability too. It will really help us.

thank you I’m still not so good in these but I’m gonna try more, thanks so much this is the most useful video I have found so far thank you

Congratulations on your work. Great video. Rds

God bless you for making this video

This is gold.

Thank You. The video is great.

thanks for the video buddy, it really helped

Awesome video!

Great video, great teacher!

Adam this was extremely well explained and just awesome!! Please upload more videos on GMAT quant topics!! Thank you soooooooo much :)

@evan.5967

3 жыл бұрын

Great! No problem. Happy to help.

Thank you for this great tutorial

Thank you very much! I learned a lot!

This is great ! Thanks.

This helped me BIG BIG BIG TIME! Thanks man

thank you so much, really appreciated your work!

@evan.5967

3 жыл бұрын

Haha, thanks!

This video helped me so much. Thank you :)

Clear Explanation. Thank you so much

This video has cleared all of my doubts.... Thanks for sharing.

Thank you very much...!! This was awesome. Please do one video for probability.

Very helpful, thank you!!

awesome video seriously thank you

Amazing Video!!!

Thank you so much, you're a life saver 🥰

@evan.5967

3 жыл бұрын

Haha, nice!

Super helpful! Thanks a lot!

very good examples and explanatory, Thanks...

Incredibly helpful! Wish the PDF was still available, but still great. Thank you

@evan.5967

3 жыл бұрын

No worries, Naeem!

This is a really great video thanks

Excellent tutorial. Thanks for the wonderful insight. Any chance you create a video to cover Partitions & Permutations ?

Great video!!!! Thankss !!

This is great!!

Very good!

Thank you 🙏

Excellent video

Amazing amazing video.

more than excellent thanks

The best video I have seen on permutations and combinations. Hey Adam couldn't get through the link is there any other way I can contact you on your other gmat resources. Thanks for the video, great job man!!

Thank you!

Great Video! Can you PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE do a video on Probability?

@pratikmeshram6942

4 жыл бұрын

yeah that bugs me too !

THANK YOU SO MUCH

Thank you 😊

For Q4 identity codes for citizens, I think there are 2 groups.. Group1 = 4 or 5 alphabets + Group 2 = 5 least integers. So the code can have 9 or 10 characters and hence it should be (26^4+5^5)+(26^5+5^5). The way you have explained, it appears that the code only has 5 or 4 characters

Very helpful - thankyou.

very very helpful..thank you..

Bro I thank you so much

Thanks for Somali Please need more videos about different topic

God bless you sir

Really great! But I can't get the website to work. I'd like to practice more.

This is monster!!!

Hi, thank you for the video. I am not sure if anyone will reply. For #6 with the problems portion of the video, in the text they said the game of chess will be with “every other player”. When I read it, I thought that player 1 will play with player 3, then player 2 would play with player 4, player 5 would play with player 7, etc... I am not a native English speaker, but I thought every other player would be just as every other day. How do I prevent myself from making a mistake like that on the test? Any tips? Thank you!

thankx alot

Very helpful

excellenT!!!!

so cool video :)

In the last question, why didn't you multiply the games from each round following the ADD/MULTIPLICATION rule?

The third practice problem is worded badly. It says "is to have no two people representing the same country", not "two people or more cannot represent the same country." I thought 3 people, 4 or 5 people from the same country was allowed. To make sure no 2 people represent the same country, here's what I did: 25c4 (all possible combinations) - (5c2 * 5 * 4c2 * 5 * 5) = 5150 ways. Correct me if I am wrong.

your videos are sooo helpful! better if you can also teach us the short cuts. like 6! 6C2 etc..

@SM-ku3uo

5 жыл бұрын

actually i realized you dont need to know 6C2 etc if we learnt just what you said :)

For keeping populations separate, is it for both arrangements and groups or for just groups? Thanks!

what would be the nPr solution for #1 @ 1:01:14 ?

Thanks

thanx :)

Thank you for your videos ! Re: problem 2 Group of 3 from 5 married couples + no two can be married. Oops, I could be wrong here but from 10 people you are removing 3 each time. So shouldn't it be 10 x 7 x 4 ?

very clever way to present combinatorics. Just one question...In the problem that states How many 3 digit integers contain three different digits. Since integers can be positive or negative are you assuming that theses digits are to come only from the positive integer pool? What about the integer - 309. Is that not an integer? Do we need to account also for the three digit negative numbers as well? Thanks

how the problem 2 diff from problem 8 apart from the or condtion ?