Q 7 ) ans c both statements for are correct..... We can weigh 78 gm in less than 7 coin ie in 4 coins ....by adding 50 + 25+ 5= 80....2 gm more .....so to decrease 2 gm add 2gm to other side of Wight... ...there fore it becomes...80 - 2 = 78 gm
7:17 wrong answer . red shoes ka bhi worst case lena hoga , 10 red pairs (20 total red) , first 10 red shoes worst case k sath nikaale toh koi bhi pair nhi banega , saare first 10 red shoes left ya right hi niklenge , fir 11th red shoe se pair banega + 1 (for next correct attempt ) = 45
7:18 45 is the correct answer. Since he has to choose a pair of red that means he must have one left and one right shoe Solution would be- 16 (black)+ 18 (white) + 10 (say All the left shoe of red) + 1 right red = 45
Correction in question 7 To weigh 78 gm using these coins, one can use 5 coins of 50 gm, 25 gm, 10 gm, -5 gm, and -2 gm. This is done by placing the 50 gm, 25 gm, and 10 gm coins on one side of the balance and the -5 gm and -2 gm coins (which are actually 5 gm and 2 gm coins, but placed on the opposite side) on the other side. Therefore, both statements are correct. The answer is (c) Both 1 and 2.
sir for 2023 qn ....answer should be 45 ....it might be the case that he may end up(possibility) picking right pair = 10 ,after which he only remains with left pair = 1 so, 36 + 10 +1 = 45
Find 3 digit pin No . From 7,6,5,4,3,2,1 in decreasing order And differ by atleast two any two digit Means two different or more than two Then Pin code possibly can be 753,741,731,742,751,752,642,631,641,531
Sir,non math background student hu ,itna easily permutation combination kahi nahi mila .... coaching mai sir 17000 aisehi de diya.....agar apka course kuch discount mai mile to Lena chahta hu sir 14:27
After completing all the 6 classes on permutation and combination ...I can say ..that....I have never seen anyone teaching such different types of questions on a single topic..thanks for your efforts sir..!
Sir u made a mistake in question no. 7. Obtion b is also correct, we can use two 50 gram coins two 10gram coins and one 2 gram coins to get measurement of 78 grams
Sir question number 3 main red pair of shoes to wear bola Hai. Agar 10 red shoes sirf ek hi leg ka Nikle toh kaise wear karega. So the answer is 18+16+10+1=45
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Q 7 ) ans c both statements for are correct.....
We can weigh 78 gm in less than 7 coin ie in 4 coins ....by adding 50 + 25+ 5= 80....2 gm more .....so to decrease 2 gm add 2gm to other side of Wight... ...there fore it becomes...80 - 2 = 78 gm
Sir inn lectures ke liye Dhanyawaad 🙏.
fantastic class legends of maths❤❤
Sir shoes question right answer would be 45
18 + 16 + 10 red shoes (say) of left leg + 1
Indeed😊
Yes bro.. You are correct ✅
yep
Bro that's right approach thanks for this
bro pair pucha hai they have not mentioned left and right so sir is right!!
7:17 wrong answer . red shoes ka bhi worst case lena hoga , 10 red pairs (20 total red) , first 10 red shoes worst case k sath nikaale toh koi bhi pair nhi banega , saare first 10 red shoes left ya right hi niklenge , fir 11th red shoe se pair banega + 1 (for next correct attempt ) = 45
Question is to get a pair. Not to get a left right pair
@@honeybhatia1243pair to wear
So it has to be left and right combination
Ans -45
Pair to " wear " . Dono pair meh left shoes wear krlega bhai?
Thankyou so much sir for your support 🙏 🙏💯💫
Very helpful ☺️
🔥🔥🔥🔥🔥
Dhanyawad sir. 🌿
Thank you sir 😊😊😊😊😊
👌👌👌👌👌👌👌👌
Thank you so much for everything 🙏😊
7:18 45 is the correct answer. Since he has to choose a pair of red that means he must have one left and one right shoe
Solution would be- 16 (black)+ 18 (white) + 10 (say All the left shoe of red) + 1 right red = 45
Great video sir
The answer of the homework question is option c 10 ...thank you so much sir for this wonderful lecture ❤😊
Can u plz explain
Just Fabulous
Nice Class Sir.
Great sir aapne bahoot acha smjhaya
Sir u r simply super geneous
Thankyou Vishnu Sir
THANKYOU SIR
BEST
Correction in question 7
To weigh 78 gm using these coins, one can use 5 coins of 50 gm, 25 gm, 10 gm, -5 gm, and -2 gm. This is done by placing the 50 gm, 25 gm, and 10 gm coins on one side of the balance and the -5 gm and -2 gm coins (which are actually 5 gm and 2 gm coins, but placed on the opposite side) on the other side.
Therefore, both statements are correct. The answer is (c) Both 1 and 2.
galat h bhai tmhra
Sir sahi bt boli great teacher
Thank you sir, very honest and earnest efforts .
Nice one
Nice lectures sir 😊
Ans is c 10
❤❤❤❤❤❤
Last question answer is 6.
sir for 2023 qn ....answer should be 45 ....it might be the case that he may end up(possibility) picking right pair = 10 ,after which he only remains with left pair = 1 so, 36 + 10 +1 = 45
Very good lectures sir ❤
Too good Sir
Q 8 . C)10
Dosto. First question ka kya formula h?
Thank you sir
The answer to the shoe question is 45
Fabulous class
Sir, Thank You 😊😊😊
Sir plz permutation and combination pora cover karva dena with 2023 pyq ta ki humien humein ye topic kahi aur se na par na pary.
Yes sir it’s our request
Thank you sir. Very helpful
tq sir
Sir in qsn no 3 answer should be 45
Thank you for making complex things easy. 😊
Find 3 digit pin
No . From 7,6,5,4,3,2,1 in decreasing order
And differ by atleast two any two digit
Means two different or more than two
Then
Pin code possibly can be
753,741,731,742,751,752,642,631,641,531
Finest
Sir,non math background student hu ,itna easily permutation combination kahi nahi mila .... coaching mai sir 17000 aisehi de diya.....agar apka course kuch discount mai mile to Lena chahta hu sir 14:27
Thank you sir
🙏
Excellent lecture sir ji❤
last ka question 10 answer hoga
Gazab ka practice krwa dete sir aap to
After completing all the 6 classes on permutation and combination ...I can say ..that....I have never seen anyone teaching such different types of questions on a single topic..thanks for your efforts sir..!
shukriya sir
simple way me samachhane ke liye
Ans 10
Sukriya sir
I appreciate your works sir thanks for this awesome lecture in free of cost .
Very good
ques no 8 ans C 10
Nice class
Sir u made a mistake in question no. 7. Obtion b is also correct, we can use two 50 gram coins two 10gram coins and one 2 gram coins to get measurement of 78 grams
2 of 50 grams would make 100 already more than 78
Thankyou so much sirji ❤
ans 10 of last ques
753,752,751,742,741,731,642,641,631,531 possible attemptes for password
tq sir
Sir time kam hota h to panic karta h mind but ab smjh aa rha h pyq se... Thank you🙏
12
Sir answer of HW Q is 6. Thank you sir 😊
Wrong it's 10
very nice and helpfull lect thank u sir👍
Lajawab 😊
Option c)3 10 is the answer to he question
Thank u sir🙏🏻
Thank you sir !!
12🎉
great lectures, thank you sir.....
so greatfull.
thanks sir
very nice sir
I request sirji please cover all permutation and combination concepts. Thanks for your effort sirji.❤
Lovely
Sir question number 3 main red pair of shoes to wear bola Hai. Agar 10 red shoes sirf ek hi leg ka Nikle toh kaise wear karega. So the answer is 18+16+10+1=45
Apka lakh lakh sukra hai sir itna achha padane ke liye Bo bhi free me... Meri dua hai app din dooni raat chogni taraqqi kare hamesha khush rhe... ❤😊😊
Thank you
8.ans 10
Ans :A (6)
Jai gurudev
Nice❤
🔷Such a wonderful session,Sir😊. Thanks a lot for your efforts in making every concept easy🙏. U're the best teacher for CSAT🙏.🔷
Very good teaching
Thank you sir this is really helpful
Thumbs up for your content sir...
Awesome
thnx
Ans is 10.
Thank you sir.
Questions 7 - Both 1 and 2
yo sir
❤
home work :- 6
Sir
Am from kerela...
Your teaching is excellent & impressive with clarity.
Is it last part of Permutations & Combinations.
last question answer is 10 like if its correct.
Thank you so much for your selfless work sir.
Hw ans option C. 10
Sir aap upsc k answer key ko dekh kr answer match kr liya kijiye kyu ki shoes wale question ka concept galat bataya aapne
Thank you for the lecture sir.
your fabulous laugh in the end 🎉