#DMTips: To summarise, “Permutation is an ordered Combination”. To learn more about Permutations and Combinations, enroll in our full course now: infinitylearn.com/cbse-fullcourse?RU-vidDME&XPPYYM6WCuE&Comment To watch more videos on Permutations and Combinations, click here - bit.ly/PermutationsCombinationsVideos_DMYT
How many 3 digits number can be formed the digits 2,3,5,6,7 and 9 which are divisible by 5 and none of the digits is repeated. Can you tell me how to solve that type of question?
@@ahinsawijerathne2871 there are 6 numbers. 2,3,5,6,7,9. If a number is divisible by 5 the last digit should be either a 0 or 5. We don't have a zero in the given number list. Fix the last digit as 5. Now we have 6-1=5 numbers (since we fixed one number(5) as last digit) __ __ 5 The other two positions can be filled by 5P2 ways. 5P2 is 20.
These videos are literally timesaver which summarise the whole chapter in a short amount of time and the animation and teaching in video is so nice and enjoyable that its hard for you to distract yourself.
after 6 years of touching this topic, I have understood math better than ever. Please keep up the good work. Looking forward to a series on Arithmetic Progression & Geometric Progression as well
May I trouble you for a moment? In a different channel, they said the answer to this question is 6: David has three shirts and two sweaters. How many ways can he wear either a shirt or a sweater? It has me confused. :( Am I missing something?
Hi Amelie! Apologies for the late response. If David has 3 shirts and 2 sweaters, there are only 5 ways in which he can pick any of those! The answer should be '3+2' = 5 #DontMemorise
I think if the question was, "in how many ways can David wear a shirt and a sweater?" then the answer would have been 3*2=6ways.... And would have been the key...
+Juhi Shukla , thank you! Yes, we will continue uploading more videos. If you wish to access all PnC videos, they are available for free on our website DontMemorise.com :)
Thanks the Don't Memorise team for such a crystal clear video. Your team has done a great job by offering free education. I wish that may God strengthen and guide your team so that your team always be healthy and continue uploading such good knowledgeable videos.
I know I’m 4 years late but I can’t resist but comment about how thankful I am for these videos. Thank You is just an understatement for this. I have been watching learning videos of different subjects in different channels, but this is the most useful one I have seen so far. Every step is taught very precisely in which most cannot do. ❤️
Thank you so much 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. 😊😊
Hey guys.. you are jst amazing from those my tution teachers.. the online class is going but I can't understand a word.. but here I clear all my doubts.. simple.. easy.. fast.. Thank you so much.. love you lots
I just subscribed! I'm so thankful I found you halfway through my stat class! These videos are clearing so much confusion from a topic I thought was difficult, but now I get it.
My maths 2a 2b boards are in 3 days and am seeing all videos of ur channel and understanding and I feel easy hope it is while solving problems and I score good Mark's in maths 2a and 2b but ur videos are amazing even in 1 day prep thanks u so much
One request to Don't memorise why don't you join unacademy & make dedicate courses of arithmetic & advance maths for ssc cgl & other govt. exams.Your videos are the best i have ever seen.
Thank you ,Thank you,Thank you ,Thank you,Thank you , Thank you, Thank you ,Thank you Mam. I am speechless Mam,Your teaching style is unique and so beautiful 👌 👌🙏🏼.Thanks mam for your help.Jay Jagannatath 🙏
Thank you so much Bandana for your appreciation. We are glad that you understood the concept. For more videos, please visit our website - dontmemorise.com/
You're most welcome Uma. 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 : )
You're most welcome Soham and Thank you so much 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. 😊😊
please make videos on topics which are asked frequently in bank exams like time and work,time speed and distance and other word problems,it will be very beneficial for all the aspirants.
