Combination of letters to arrange letters in MISSISSIPPI for Separate S

[@lastchance8142]

why 8C4 instead of 8P4 for S? Arrangements are permutations, not combinations.

[@bharatvekariya1973]

8c4.4!/4!= 8p 4

[@MOENGMOSWAANE]

Good Question

[@mr.Anand_kr]

if you take 8P4 then you have to take 4! in denominator for 4 S's like this (8P4/4!). And rather than taking this we can also take 8C4 which value is also same as 8P4/4! so if you take either permutation or combination the answer will be same .....

[@lastchance8142]

@@mr.Anand_kr correct. Answered my own question 4Y ago...LOL

[@mr.Anand_kr]

@@lastchance8142 😄😄😂😂

[@samamaya8043]

Thank you so much! Your explanation was very clear and helped me understand permutations much better.

[@meghakanchan2811]

I am so lucky ki mujhe video on KZbin aapki Mili I can't tell you kitna sara confusion dur hua h thanks sir😁

[@MathematicsTutor]

Here is related Playlist for you: kzbin.info/www/bejne/ppizdId_jLKKfc0 Let me know if that helps. Thanks

[@lastchance8142]

Ok, so I'm going to answer my own question. For the S's, the order doesn't matter because it looks the same no matter which S is placed in any of the eight places. Therefore it is correct to say 8C4. It is equivalent to dividing 8P4 by the 4! repeats of S.

[@shaanautotools6605]

Thanks for answering that ! I had the same doubt !

[@as.i.am_121]

Hello. I was watching your video. How do the combination play a role in filling up the gaps . Help me understand

[@priyabhalla90]

When to take permutations and when to take combinations. In one of the question, you had taken permutations for the different spaces to be filled and here you have taken combinations.

[@MathematicsTutor]

When and how to use Permutation: kzbin.info/www/bejne/r6nZqoFrp5KqrtU Hope that helps. Thanks

[@golang2351]

I have a doubt sir..why we devide the common arrangements from total arrangements instead of substract them

[@jrrj940]

Me too 🧐

[@mridulgoinka3239]

sir in part b it can also be possible that 2s or 3s are together , as question does not say that all s are together

[@Pratibha-fb3nn]

Awsome explanation ✌✌

[@Bollyking1988]

Well done sir, please do video on this type of logarithm question: 4.664³+6 all divided by 4.664³-6 The question says: Evaluate without using calculator.

[@MathematicsTutor]

Thanks. Will do

[@sagarvanave]

Thank you so much sir. Lecture was very good thank you once again😇

[@morengothemoringapeople]

Thank you for your videos. I'm looking at coming up with names of products by combining words. Is there a software that would offer all these permutations and combinations please

[@MathematicsTutor]

Good idea. Thanks

[@MathematicsTutor]

I can share a related Playlist: kzbin.info/www/bejne/poW7fnymbsSEqMU All the Best

[@medievalchallenges5246]

Hi sir can you tell me in how many different 4 letter words can be formed from ellipse

[@CatherineMwenda-s6p]

Thank you so much sir this has really helped ☺

[@lalintuguic561]

pacing is just right

[@fasihullisan3066]

in part B ,do we not take the arrangement of s with itself?

[@lalintuguic561]

what if either of the all the I's are consecutive or all the S are cosecutive or all P's are consecutive sir

[@surens1730]

Thanks for explanation

[@pimmipatel.2124]

helpful

[@abaegbuemmanuel6545]

Please am confused for your video on correction where the vowels are together you ooie where together you did did 4 factori over two factorial why not here

[@rv0_0]

this is permutation not combination

[@b-shahdarshb2612]

The last one I am not able to understand properly, as well as not getting correct solution ( i.e Ans ). 🤔

[@MathematicsTutor]

Last another Approach: kzbin.info/www/bejne/d5PFdKKOg9ash5o Hope that helps. Thanks

[@MathematicsTutor]

also no boys together: kzbin.info/www/bejne/p3bMkqqEbK5mlbs

[@b-shahdarshb2612]

Respected sir, this is because in the word CLASS we had only one repeating letter 'S'. While in the word MISSISSAUGA we have 2 repetitions i.e 2 A's and 2 I's and therefore we have divided by 2!×2!. Thank you sir so much. 🙏🙏🙏🙏🙏

[@b-shahdarshb2612]

If we try to to calculate for the word MISSISSAUGA by old method ( i. e total no. of arrangements less no. of arrangements in which S's are together ) correct ans is not being received :- 11!/ 4!×2!×2!= 415800 S's together= 8!/ 2!×2! = 10080 And 415800-10080= 405720, while the correct ans is 88200. What' s the reason ?? How to calculate for the word Mississauga By old method ????

[@b-shahdarshb2612]

I am understanding the new method but not getting answer for the word 'MISSISSAUGA' by old method. 😔😔😔

[@domalapallivinesh6213]

Find the no. Of arrangements of the letter in TALLAHASSEE which have no adjacent A's. Answer pls sir

[@vibhashukla7518]

Hi Dr Kumar, I will appreciate your help in solving the following problem- "When all the letters in T,E,N,N,E,E,S,S,E,E are arranged.(i) what is the probability that an arrangement starts from TEN? (ii) also starts from TEN and ends with SEE? " Thanks for your time

[@Webster455]

No

[@majestic7768]

The last one is tricky.

[@shashankpandey1966]

Thnku sir

[@silentlipzz2723]

Tnku sir

[@RitvikPathak-t7z]

Wrong solution Wrong combination It will be 4C8 not 8C4 Hence it cannot be applied here Answer will be 33810

[@beinghomie]

Too slow

[@Adenosene]

Just speed up the video