Permutation & Combination | NCERT solutions Class 11 Maths | Ex 7.1, Ex 7.3, Ex 7.4, Miscellaneous
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- Опубликовано: 18 сен 2024
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👉One- Shot Video on Permutation and Combination Class 11: • Permutation and Combin...
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"Ex 7.1-Q.1 - How many 3-digit numbers can be formed from the digits 1, 2, 3, 4 and 5 assuming that (i) repetition of the digits is allowed? (ii) repetition of the digits is not allowed?
Ex 7.1-Q.4 - How many 5-digit telephone numbers can be constructed using the digits 0 to 9 if each number starts with 67 and no digit appears more than once?
Ex 7.2-Q.4 - If 1/6! + 1/7! = x/8!, find x.
Ex 7.3-Q.2 - How many 4-digit numbers are there with no digit repeated?
Ex 7.3-Q.5 - From a committee of 8 persons, in how many ways can we choose a chairman and a vice chairman assuming one person cannot hold more than one position?
Ex 7.3-Q.9 How many words, with or without meaning can be made from the letters of the word MONDAY, assuming that no letter is repeated, if
(i) 4 letters are used at a time,
(ii) all letters are used at a time,
(iii) all letters are used but first letter is a vowel?
Ex 7.4-Q.5 - Find the number of ways of selecting 9 balls from 6 red balls, 5 white balls and 5 blue balls if each selection consists of 3 balls of each colour.
Ex 7.4-Q.9 - In how many ways can a student choose a programme of 5 courses if 9 courses are available and 2 specific courses are compulsory for every student?
Ex Miscellaneous-Q.1 - How many words, with or without meaning, each of 2 vowels and 3 consonants can be formed from the letters of the word DAUGHTER?
Ex Miscellaneous-Q.4 - If the different permutations of all the letter of the word EXAMINATION are listed as in a dictionary, how many words are there in this list before the first word starting with E? Ex Miscellaneous-Q.6 - The English alphabet has 5 vowels and 21 consonants. How many words with two different vowels and 2 different consonants can be formed from the alphabet? Ex Miscellaneous-Q.7 - In an examination, a question paper consists of 12 questions divided into two parts i.e., Part I and Part II, containing 5 and 7 questions, respectively. A student is required to attempt 8 questions in all, selecting at least 3 from each part. In how many ways can a student select the questions?"
Timestamps:
1:50 - Ex 7.1- Q.1
5:50 - Ex 7.1- Q.4
9:09 - Ex 7.2- Q.4
11:11 - Ex 7.3- Q.2
15:13 - Ex 7.3- Q.5 19:52 - Ex 7.3- Q.9 25:44 - Ex 7.4- Q.5 28:21 - Ex 7.4- Q.9 31:03 - Ex Miscellaneous- Q.1 37:02 - Ex Miscellaneous- Q.4 42:32 - Ex Miscellaneous- Q.6 45:09 - Ex Miscellaneous- Q.7
PLz upload chater 9
Mam plaese make solution of all chapters
Ex=7.3-Q.5 non repesting h frr bi two times 9 kyu lia gya h .
U r amazing mam 💗💗
Mam please make a video on rd sharma's solution and examplar too
Mam you are amazing and so intelligent in mathematics. Thank you for providing this video.
Actually she is not only intelligent & amazing in maths but also in physics and chem ...u should watch that videos also 😊😊😊
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She is noob
Mam sab subjects p pura crystal clear kar deti h aur y maths kya cheez h
Ma'am thank you vvvvvvvvvvvv much ,,,
Maam literally I have no words for you ,,,,
Ma'am I am in 12th and I had difficulties in this chapter but now when I watched your introduction video and am able to solve any question,,,
I don't know how I express my gratitude ,,,, thank you very much 🙏🏻🙏🏻🙏🏻🙏🏻
Thank u ma'am it's a good class and I'm from kerala
Concept hua crystal clear.... Tqsm mam😊😊
wow mam, fantastic explanation, everything is crystal clear.
Mam app Kitna bolti Hain or Kitna energy kharch Karti Hain hamare liye I wish app na pure world main popular hojao 🥰🥰🥰🥰I pray to God that you got in your life that you want thanku mam
Thanks mam for providing basic tips in maths class and we understood very easily from your videoes and solve math's question fastly
Mam ur amazing.u clear all my doubts.thank u so much mam.😀
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No 4 years😂
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Meanwhile me after 4 years 🌚😎
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Mam ur teaching is amazing 😍😍
Mam you are a good teacher in the world
Thank you so much mam.for this video...
Mam you are so amazing and most educated teacher in the world!
Anyone who wants more videos of physics of class 11
Raise ur hand
👇👇
Chap 4 ka..
You are amazing ...
And thanks for making me understanding these questions
Mam I have been selected in Navy .... thanks mam for everything .. without your maths class it was not possible.....so thanks mam again
Shakal deakhi hai apni navy mai select honga
@@ayushtiwari5703 bhai tum jaise log hi logo ko sakal se judge krte hoge....phale apni sakal dekh lo..fir dusaro ki dekhna....and Ha mane mam ko thanks bola hi tumko nhi to isilye jyda banne ki jarurat nhi hi...
@@ayushtiwari5703 And ha kabhi jab tumse ho paye to ana navy me Mai tumko miluga. ....ur ha meri photos 04 year's purani hi.....bhai agar khud se na ho paye to dusaro se jla mat kro... Dusro ko appreciate Krna sikho
@@ayushtiwari5703 navy mai select hone ke liye shakal nhi dekhi jati.. bnde mai talent hona chahiye.. shakal tu sirf actors, actress ka dekha jata hai..
congrats🎉
Thanks you mam....🥰
Ma'am,after watching you 1st video of permutations and combinations,I was able to solve each one of the question that you solved here by myself...is this enough for school exams?
Mam Its Just a superb lecture absolutely amazing Mam👌👌👌
Mam Is this channel completely owned by you?
Mam we want a favour from u so plz ..
This tym cbse came with applied mathematics ND many students along with me had gone for it so plz make video of applied mathematics too plz ...
🙏🏼🙏🏼🙏🏼 It will be very helpful for us
Mam, when I am solving question no 4. I am getting a different answer. Please tell me where I am doing mistake.
When 0 will be in one's place, no of possibilities 9×8×7=504
Similarly, when 0 will be in tenth place no of possibilities 9*8*7=504
Similarly, when 0 will be in hundredth place I am getting 504 possibilities. My ans is 504×3=1512. But your answer is different. Please tell me where is my mistake.
So helpful!
Very very thankq 🌹 mam
It is very helpfull for me
Ma'am please start physics also for class 11
Very nice video only important questions no extra load Thanx ma'am.
Mam please solve all Qus I need to.much
Clear hay concept
Mam you are not intelligent in maths but you are so intelligent in all subjects.
You study all subjects P. C. M.
Great Mam you are brilliant😎.😎😎
Very nice explanation....one thing is good in your videos that you are explain also the meaning of "WHY we study this Chapter" like this...!!
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Thank you!
Thank you madam 🌹🌹🌹🌹🌹❤️
your way of teaching is so simplified
it helped a lat
thank you ma'am
Thanks mam.... Finally.. I am fully confident to solve any type of qns..
Mam plz make a video on chapter 10 straight lines
Mam plzz trigonometry ki vdo bna dijiye mam
Thank you mam and I am here after your achievement so congratulations ❤️
हमेशा की तरह इस बार भी एक धमाकेदार video
Jai ho
Mam your level of explanation is simply superb👌👌👌
Mam plz suggest me a book for competitive exams 11 & 12 classes ncert
Your method of teaching is bestest.
Aap bhut achha padhate hai.
Mam aapne physics ke sirf ek chapter k hi video upload k hai
Mam plz jldi s baki chapters ki bhi upload kr dijeye.
Thank you Ivanjot!
Yes I will; but please remember that it is not just about me uploading the videos , you must also practice all the questions.
@@LearnoHubClass1112 mam app math chemistry bio sub kaise padha deti hain
@@nirupamathakur4226 talent
Thankyou mam to provide this video
Mam please sequences and series ka video post karo 11th math complete karo
Coming soon 😊
Plot Twist : At last question student will only choose those questions what he knows to solve.
Thanks a lot Ma'am but in question 9 I am confused about taking combination not permutation
Amazingly explained!☺️☺️😍😍😍😍👍
Thank you mam
Thank you very much maam 👏👏
Thank you sooo much Ma’am😃
Mam ex.7.3, question ni. 4 me kya hum unit place se bhar sakte h ..agar bhar sakte h to kaise phir krenge or ans kya aayega
Mera bhi yhi doubt h 😅
Mam 1 question ke (i) part mein 4 ka multiple nhin kar sakte reply please
Mam please upload a video on sequences and series Class11 Maths!!!! Please mam
Today is my exam and me watching this video before exam
Mam please 🙏🙏🙏 aap jee ki bhi taiyari shuru karwa dijiye 🙏🙏🙏🙏🙏🙏🙂🙂🙂🙏🙏🙏🙏🙏
Absolutely 💯 💯 💯
Very helpful video 😊
Quadratic equations
Awesome mam
Crystal clear 💓
मुझे बहुत अच्छा लगा।
Excellent ❤️🙏
Tomorrow is my exam 😂 how I can expand 2 hours for 1 ch😂😂
Mam plz upload chapter 9 in maths class 11 plzzzzzz
Thank you Mam for this one.
Thanku mam you clear my all doubt😍
17:09 it's my name😅😅
Thanks a lot mam for the stupendous explaination!
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Please cover all 16 chapters ncert
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Ultra chad before 1day of boards🥶🥶🥶🥶🥶🥶🥶🥶
Before 7 hrs 😈
Before 3 hours
Excellent explaination
Mam you explanation is good but my concept is not clear so I am understanding nothing ❤❤
😂
VERY VERY VERY EXCELLENT MAM
mene bina intro k ye video dekha fir bhi mujhe smjh aa gya awesome explaination mam
Mam you are great mam thank you so much mam✨
Mam Ex 7.3 Q.9, If we put the value in the formula nPn then obtain result is120 .answer is not familiar with the one you solve in the video.
Mam but in Qno. 2 💀.. 6&7 is already filled
You're great ♥️ thank you
Thank you ma'am
Mam miscellaneous Ka questions number 9 Mai vowels ka arrangements nhi Hoga ... KyA ???
Mam plz reply me soon🙏
Mam example samjha dijiye
Tnks mam so much u are great understand
I love this chapter
Mam I have a question...agar 7.3 k question 2 me piche se start kre fill krna to answer Kuch or aara h...to konsa answer thk hoga_?
Ya i have same doubt
@@nandinibairagi5016 ab to hogye pass 😂😂
@@vinitkumar3439 oh actually i have passed 12th in 2019 now i am preparing for competitive exams.. That's why
@@nandinibairagi5016 jee? Aree uski to guidence mereko b Chahiye
@@vinitkumar3439 no..for Nimcet exam
2023 &2024 batch
Amazing explanation 👍👍👍👍👍
Question 4 ko agar right hand side se solve kre to Kaise karege
Finally 3 million🎉🎉🎉🎉🎉❤❤❤
Ma'am thode zyaada level ke sum karao ye toh aapne har ek exercise me se sabse easy waale karwaaye hai
Maam you are allrounder
I am watching this in my 2nd sem of college....day before my maths exam
No legend watch March 4 because paper 5 march😂
Tmrw is my exam and im watching this know...🫠🫥
7:55 pr last digit toh 0 nhi ho sakta n toh phir 7 ways hi possible honge ?
Thankkk yoy
🟩Grate teacher, Grate teaching🟩
mam which book are teaching
In how many ways can 8 boys and 3 girls be made to sit in a row so that a boy is seated at each end and no two girls sit together
Mam, can't understand 31:03 question. Why it's not permutation. There is not anywhere written for selection. Please explain.