Assam Special TET 2026 || LCM and HCF || Mathematics Important Questions || KSK Educare

[00:00:09]important question I mean I don't know what I'm talking about LCM and HCF.

[00:00:19]Class number five way as you do the other class I would say silo.

[00:00:24]First question to have to get a very basic at a question why what are all the factors of 12?

[00:00:36]A bottle key key number divisible by They will be 12 or factors.

[00:00:43]Then again bottle 12 e 1 and 3 divisible by 12 key divisible by e 2 a divisible by 6 and a divisible by e 3 a divisible by e 4 a key divisible by Okay, so a way to a 12 or factors.

[00:01:05]Yeah, prime factors by even factors but all factors I'm not going to corner I'm not going to say what are all the factors.

[00:01:15]12 or factor key key way by a way I mean I mean easy way to the music lover like a way to a way a 12 number two and key key number divisible by a way I mean I mean lover like a 1 2 3 4 6 12 a number a number 12 to divisible by option C 2 correct answer way to a way 1 2 3 4 6 12 okay.

[00:01:43]Next.

[00:01:45]Find the number of prime factors of 280 280 molecular formula I mean I mean lover like a key manta molecular formula I mean I mean lover like a key to a way lover like a 280 what I mean 140 70 * 7 4 / 35 from That's what he had a double 5 is a double. 7 * 280 that money will say 2 into 2 into 2 into 5 into 7 overall come on to the prime factor I say 2 prime factor 5 prime factor I don't have a 7 prime factor overall come on to the whole 1 2 3 4 5 to hold option D to correct answer is a double I don't have a total come on factors of the heat to be able to do the night Yeah they will be able to do this is a prime factors come on to the answer next first five multiples of 7 is a double question that will I hear that gay LP that will I hear 7 of the bottom pasta going to talk either first five multiples of 7 will be able to do that gay Okay then I get 7 into 1 7 7 into 2 14 and I get first pasta going to be able to get and I get come on to the whole of my 7 into 5 35 will be able to do okay 7 14 21 20 35 option D to correct answer okay I'm going to forward to personal to lay HCF of 12 and 18 is 12 18 year I don't have a HCF will be able to get I mean you do directly who I mean direct answer will be able to do that one into my to a device for you to take away this one I mean I don't have a follow but I could I do this one 2 6 are 12 2 9 are 18 I will be able to get it is a double 10 year is a double 3 2 are 6 3 3 are 9 but 8 years were HCF key hole 8 to the 8 to the multiply >> 6 is the correct answer.

[00:04:03]Which of the following is not a factor of 24?

[00:04:10]Factor no way that money key.

[00:04:19]Okay.

[00:04:27]1 and 24.

[00:04:30]2 and 12. 3 and 8.

[00:04:36]4 and 6.

[00:04:41]Next key equation to say key this equation to LCM and HCF of two numbers are 120 and 5 respectively. If one number is 30, another number will be.

[00:04:58]Two the number suppose A and B I say.

[00:05:03]I do HCF.

[00:05:05]LCM I do HCF. Multiply number multiply for our command I mean by some.

[00:05:14]Two the number A and B.

[00:05:17]A two the number or LCM.

[00:05:21]HCF the money way.

[00:05:23]Do the multiply number to the multiply for our command way say a concept to I mean you have to apply for it.

[00:05:30]LCM the money say.

[00:05:32]120 this say.

[00:05:33]HCF the money say 5 this say.

[00:05:37]I do A to the A and B two the two the other number this say if one number is 30 believe I say I mean I do you A to 30 way.

[00:05:47]I do B to I mean we are going to take a say.

[00:05:50]I don't beat up in William a bullet. He got it.

[00:05:53]30 day 120 directly cut it open. 4 times a double 55 or that another number is 20 option A to correct or double. Okay.

[00:06:02]Next.

[00:06:04]HCF of any two or more fractions is the top fraction of set Okay, fraction below HCF of the William a bullet key way fraction will equal a and also a by B at a key way fraction way C by D at a key way fraction way. Okay, P by Q key way at a fraction way. Suppose a below fraction or HCF William a bullet suppose example this one can I get Q William equal to give up a minute 38 fraction below HCF William a bullet 50 a whole day numerator numerator numerator or key logo like a HCF logo like a numerator numerator numerator or key HCF William a bullet or denominator LCM logo like a denominator numerator or denominator okay numerator will equal a a c p 2 4 of set a below numerator I don't follow the black B D Q a below key way denominator denominator or LCM or numerator HCF way Okay, so you have to option A to correct answer or double or double LCM William a bullet 50 a minute key way the fraction or LCM William a bullet 50 a the money below numerator or set numerator numerator or LCM numerator here a LCM or denominator or HCF I mean lower leg ego.

[00:07:52]Okay, so I do more not like you by you do off you would be a prime factorization of 60 is 60 prime factor I just want to really have a lot of 60.

[00:08:08]30 times a double first five Okay, so keep a little me 2 into 2 into 3 into 5 2 into 2 key hole 2 square into 3 into 5 option A 2 correct answer is above next What is the smallest number that remainder is three every time when divided by 6 8 12?

[00:08:40]I mean 6 divided by 4 in there three remainder okay 8 divided by 4 in there three remainder I don't know 12 or divided by 4 in there key hole in there three remainder and you got the number I don't know I don't know smallest I don't know what I like I mean keep going I mean 6 8 I don't know 12 you got it LCM to really alone really alone a z remainder remainder to plus 4 in there take a set or LCM to really alone LCM to really alone LCM key hole in there 2 3 meter set that is set 2 3 meter set 2 2 2 3 meter that is set three 24 over LCM LCM key hole in there 24 LCM Question of curiosity remainder The number of key over Number 2 over LCM plus remainder.

[00:09:53]Okay, but LCM I say 24 remainder of say three take on the answer is the smallest number is 27.

[00:10:00]When it 27 to n of smallest number Hawaii Zach I mean 6 and a divide for no three remainder 30.

[00:10:07]I tell you divide for Leo three remainder 30 and all next key question this is what find the largest number by which 989 and 1327 are divided leaving five and seven respectively. I don't think I don't want to come here to me and I could I get the two day 989 and 1327 of foreign policy for me pass out hot hot hot hot hot someone can you get a download from here to me over like a two day 989 of divide for five remainder 30 and all 1327 of divide for seven remainder 30 okay.

[00:10:43]Okay, I'm a first remainder be like minus for you know. 987 989 989 you have divide for you there when do you divide for him largest at a number of divide for him key number I mean I don't know what you do I mean you have a lot okay. Here remainder 30 five remainder 30 go to get your for a five minus for you.

[00:11:03]1327 of divide for you there came on remainder 30 seven remainder 30 go to get seven minus for you okay key over 1320 and all 984 it your number of the over 984 and all 1320 a two double a two double a Mickey could you go like a HCF off you have a lot Remainder can you but they do okay.

[00:11:26]What am I going to do they divide for her?

[00:11:30]What am I going to do they divide for her?

[00:11:58]>> one 6 5 1 6 5 55 times HCF 2 into 2 into 2 into 3 8 3 24 24 option C correct answer The ratio of two numbers is 3 is to 4 and their LCM is 84. What is the larger of the two numbers?

[00:13:02]LCM 3 into 4 into X common LCM 3 X 4 X LCM 3 into 4 into X by me 12 X that value already question of this 84 will be So you have I mean X or will you keep on X or will you keep on 84 divided by 12 human body double 7 times of that X or below seven.

[00:13:33]P x or 4 x down or going to have 4 x to down or what the 4 into 7 you man on 28.

[00:13:41]Option D to get it correct with a ball and HCF relay height.

[00:13:46]HCF for the relay height X or that seven of HCF. Okay.

[00:13:52]I'm going forward to personal to light.

[00:13:54]A but I mean fractional HCF off 2 by 3 8 by 9 16 by 81. A fractional HCF key over.

[00:14:03]Concept key is in there. HCF fractional HCF concept key is in there demand below numerator numerator below upper or below numerator a numerator below key like a HCF like a.

[00:14:17]2 8 and 16 or HCF like a.

[00:14:22]Or LCM color like a color below LCM like a 3 9 and 81 or LCM like a.

[00:14:29]Or HCF over 2.

[00:14:31]Or LCM key man over 81 over 2 by 81 D2 correct answer over the ball.

[00:14:37]Next.

[00:14:38]Same way 82 up in the home work over.

[00:14:41]You got it? That is all comment of the number the answer key over.

[00:14:45]You do we say home work can I get over all of them and I get over to connect over the ball. You got it?

[00:14:49]A fractional below HCF over the ball and all of them the man below numerator I say. 3 4 7 A below Q layer by HCF over the ball. That's a demand below denominator I say A A below Q layer by LCM over the ball.

[00:15:05]You got it? Over the ball.

[00:15:07]Next.

[00:15:08]LCM over the ball again about fractional LCM over the ball again over LCM.

[00:15:14]You man below numerator I say A below LCM or the man below denominator I say.

[00:15:21]A below or key way HCF. You got it?

[00:15:25]>> 152 83 a I don't 369 here at 8 a.m. 3 or 10 by 3. Option C 2 correct answer is a ball.

[00:15:37]Next.

[00:15:44]Next.

[00:15:45]The product of two co-primes is 117. The LCM is co-prime co-prime LCM money key way number 2 type product product of the numbers product of the numbers co-prime or LCM money key way product of the numbers Get a product to 117 LCM 117 a over.

[00:16:32]Okay.

[00:16:35]co-prime number or the top co-prime number or product the money over LCM human a over key or current HCF 1 height can I get all my booster the quiz so so I I mean Who is all over I mean discuss all over LCM into HCF is equal to key way A into B way.

[00:16:55]co-prime 88 HCF 1 height take a year 21 way go year 2 key way go 1 way go okay 1 multiply current 8 in the top 2 pi 8 in the top 8 in the LCM key way go A into B or top product of the numbers Next.

[00:17:13]HCF of two numbers is 8 which of the following can never be their LCM?

[00:17:27]multiples of eight over multiples of eight over LCM divisible by eight over divisible by eight divisible by eight So, 48 divisible by eight? Yes.

[00:17:49]Yes.

[00:17:51]56 divisible by eight 60 divisible 24 divisible by eight or 24 divisible by eight divisible by eight No. Hi.

[00:18:07]LCM He took a correct answer for example.

[00:18:12]Okay. 48 56 24 divisible by eight or Next.

[00:18:20]A value is a two cube into three square into five to the power four. B value is a two square into three to the power five into five square. C value is a two to the power four into three cube into five. HCF I mean we will have to get ABC. HCF I mean we will have to get ABC.

[00:18:35]Okay, so first I mean you will be so that you will be holy You have the best way. You have the best way. You have the best way.

[00:18:44]Come on.

[00:18:46]Come on. I see you doing it two cube.

[00:18:49]two square I don't do to the power four.

[00:18:53]So, lucky the two Come on. Power to love her.

[00:18:58]You need to do sorry. Come on. Do you do to love her?

[00:19:02]I would say it's going to come on.

[00:19:04]He took a common.

[00:19:06]I say so what it Okay. So, lucky I have a three square I have a two to power come I would say it's going to have five.

[00:19:15]or five I would say okay.

[00:19:18]Two square, three square into five key next Three numbers are in the ratio 4:5:6 and their LCM is 180. Their HCF is in the number four is to five is to six or a ratio this is 4x 5x 6x believe So I get that HCF key way.

[00:19:48]I get that HCF key way I get that HCF of I will LCM key over LCM key over LCM X to the common I say X to put them out there over there.

[00:20:01]I would say sorry We are there is a ball.

[00:20:07]2 2 = 4 5 to not say 2 3 = 6 2 into 2 into 5 into 3 This 60 Okay.

[00:20:22]We should do this.

[00:20:24]LCM I mean LCM 60x that will do 180 60 180 cut it down three times above X is 3x X money to do HCF Okay, option A to correct over.

[00:20:40]next Next question to say LCM of two numbers is 45 times HCF I mean HCF of 45 times above And their sum is 460 If one number is 50 at a number this is 50 What is the other number?

[00:21:09]and into HCF is equal to A into B A concept to me apply for take a second it just what L money came out 45 H what do you get a lot of that 45 H and we put for eating 45 H I don't have that H 46 H is equal to 460 it's all value for me come on 46 460 10 times double that H is 10 yeah I have what yeah they are me a lot of value of a bottom 45 into H H money 10 or that 450 okay it is a concept to apply for the whole way go LCM is 450 HCF is 10 A is 50 B came out of me not on me William take a second 00 got to do I said it 5 minute 45 of a cotton 9 times double it here be come out of a 9 into 1090 of a be the value option A 2 correct over I have a good season 2 by 6 I don't have a summer okay I don't have a question I had a double party the LCM of two numbers is 14 times their HCF able to 8 year old to LCM LCM to 14 times HCF or I don't know if one of the numbers is 36 I don't know A is 36 and the sum of the LCM and HCF is 270 LCM I don't know HCF plus 4 year 270 power okay I don't know what do I get other number that be William again concept to key LCM into HCF is equal to A into B take a second it is a summer a lot of that I mean keep up with the bottom 14 H put for eating I don't have a lot of 14 H plus H is equal to 270 it is a come out of a bottom 50 eight is equal to 270. Yeah, eight solid human bomb.

[00:23:11]270 divided by 15. Okay, three day that you will find him.

[00:23:20]I will pass human by the ball 18 times I will go to 18 money I will say 18 18 money I will say 18. Okay, but 18 a lot of money bomb 14 into 18. Okay.

[00:23:32]18 into 14 multiply by that.

[00:23:35]4 8 are 32 72.

[00:23:40]252 bomb L I mean 252 bomb 252 is a L and 8 human by Silo 18 by Silo A I think man 14 and O No, I A asset 36.

[00:23:58]A asset 36 B human of all I mean we have all the lucky. Okay.

[00:24:04]I got 36 in a 252 into 18 yet divide by 36 in a that you have a B value 2 find them. 18 in a 36 of 30 by 30 two times above up to two day 252 30 day 1 2 6 126 6 option A 2 of all correct answer. Okay, I don't follow someone busy by that.

[00:24:27]Next.

[00:24:30]The HCF of two numbers is 17 and the other two factors of their LCM are 11 and 19. The smaller of the two numbers is if you have to follow this about.

[00:24:43]LCM I will equal it here HCF into other factors. Other factors.

[00:24:52]Okay, that I mean you have to equal of all 11 into 19 11 into 19 for example if you have to follow this about. Okay.

[00:25:08]H C F or logo smallest but smaller factor to multiply for it.

[00:25:14]Smaller factor to multiply for it.

[00:25:18]Smaller number can I get by? H C F or logo smaller factor multiply for it. H C F human is it? 17 Smaller factor going to wait.

[00:25:27]11 or 19 8 to the 11 to 4 4 to get 11 to multiply for it to get smaller number to come. I don't need a larger number like it to get equal in.

[00:25:36]H C F or logo larger factor Okay, so key over 17 into 19 with over.

[00:25:46]So you have to 17 17 187 over correct answer.

[00:25:51]So you might need me as you are you supposed to do. If you like it, like or comment for you to know more. I don't get it and you subscribe for me subscribe for me logo. Thank you very much.