#WorkProblems Part 1- Basic Concept | CSE and UPCAT Review

if two people work together how much faster would they finish a job work problems that's what we're going to talk about [Music] today hi there thank you for checking out my channel thank you for clicking on this video if this is the first video that you're watching from my channel i make educational and motivational content so if you don't want to miss any of your uploads don't forget to subscribe and hit that bell icon now like i said in the intro nina we're going to talk about brickword problems this is a series revamp videos um what's age problems fractions just a quick little plug if you uh want to help support this channel in our cost of democratized education in the philippines you can do that then by helping us and buying our merch you can find there's a shop.teamlikea.com that's where i put up your hoodies shirts and taps all of the things that i designed for this team for those of you in abu milina my name is if you're going to get those but again it's just a good way for us to append the new unit income so we can pass it on to our scholars and our other educational projects soon okay so thank you guys for listening to me and now that we have that out of the way i'm going to switch over to my pc so i can explain this uh concept to you better i'll see you in a bit okay so antonio adding lecture dance work problems this is another series revamp i just wanted to explain and then we're going to build on top of it in the following weeks okay so i'm going to give you traditional formula and then an alternative way of solving it uh later and you can pick and choose what you can use by the things in your exam sparrow is a stress collagen now if you're watching this and you're a student tapas melon required solution in your teacher use the solution okay party [Music] my encounter in your student life than you okay now this is the type of question that you can expect but it goes up and at the end of our quick problems it takes lisa three hours to watch the car darren takes six hours to do the same thing if they work together how long would they take so again um shout out to elisa these are viewers if you want me [Music] that they do now why do i need to point this out when we're starting out someone simply problema we just put one here or whatever the job may be pero in some work problems specifying it's more than one job you also have to be careful about that so you need to know at partner again personally three hours next sabbath takes six hours to do the same thing um six hours next question if they were together how long would they take now then union logic behind the formula a lot of kids could say they would come up to me saying for me we have one third plus one six zappos and quantity nian x is equal to one now in fact fractions equality smooth finding an lcd here and some report problems that have done if you haven't seen your series nothing on the qualities of description box if you're watching this on youtube important fundamentals about fractions and about the qualities nasa please then description box okay now how do we do it over six and one third angle is six divided by three that would be two that was times one oh olivia numerator so this will be two times one that would be two so we're saying one third that is two over six eto one over six nikola making one over six longshot okay x is equal to one now we have two plus one but nothing you add three over six that would be one over two x equals one okay so a quick trick will be to multiply the entire thing by its reciprocal multiply so this will be multiplied to 2 over 1. i'm rolling that inside quantities that would be two so the answer is two hours two hours okay so that is the first option if you are taking you algebra class nino or pre-class nino this is the type of question or this is the type of solution mari now there is an alternative way of solving it now any alternative there is another option but and again um if they work together and again you have to understand that this type of trick will only work is this number one step one would be to multiply them so 3 times 6 that would be 18 okay and then the next step that you're going to do you're going to add them okay so you add column 3 plus 6 that would be nine so it'd divide column so 18 divided by nine is equal to two okay so the answer is two hours okay so that is just a quick trick but again that only works if you problem if fixed sha minigame individual individual tapos is all right now the best way for us to learn if quiz i'm going to 1999 you two problems uh suggestion would be first is of no using a traditional method my formula and then you can use your alternative method to check the answer okay okay and if you're ready with your pen and paper your timer starts now do [Music] so do [Music] all right let's see how it did let's start with the first question so it takes andy six hours to clean the house simply dao takes nine hours to do the same thing if they work together how long will they take so again individual in the stats see andy six hours sibeli nine okay proper place nine right here i'm gonna hand up if they work together and again we'll just put x here and then here we put one and now we have the equation now solve the net in you lcd now six at nine that should give us eighteen okay and if you have trouble with finding the lcd my my techniques for that um i put you my speed check score in this video and find the video in the last description box okay so now we have 18 parameters 1 over 6 18 divided by 6 is 3 times 1 that is 3. so this is 3 over 18 plus and then u 9 18 divided by 9 is 2 times 1 that would be 2 so 3 plus 2 and then x is equal to 1. so this is going to give us 5 over eighteen x is equal to one parameter five over eighteen multiply that in both sides by the reciprocal which is eighteen over five so omaha nito is equal to 18 over five okay or mi mix number nine that would be three and three over five okay three and three over five hours that would be 3.6 hours i hours and minutes you're going to now have to multiply 3 over 5 by 60 if you need a hand up young video on converting units of time so that would be 60 times 3 over 5. okay times 60 ito that is a hundred and eighty over five okay so it divided it so this will give us uh three and six so 36 minutes so three hours and 36 minutes okay so again um depending on the options exam options so you will then need to convert which is the reason why i explained that to you quite quickly okay now gabitina you're checking the method okay so again you know first thing is to multiply them so six times nine that is going to give you fifty-four typos six plus 9 is 15 so 54 over 15. okay now if you notice but i'm divisible that's a three so it'll lowest terms not in sha when you divide three that would give me 18 over 5 which is the same as okay so again speed technique 18 over 5 okay okay number two now if you notice this time we have kathy dan and edgar now yeah isn't it for trying to solve it if you're using the traditional method it's the same thing takes cassie for hours to stock the inventory so you have four sedan naman takes 10 does the same in half the time it takes then you again level up the type situation exactly we now how long would they take if they all work together that would be our x and then of course you in vendor inaudible um we're going to be a little bit more careful but it's the same process lcd no 4 10 at 15. okay that would be 20. 20 divided by 4 is 5 times 1 that is going to give us 5 plus 20 divided by 10 okay times 1 so 20 divided by 10 is 2 times one that would be two plus and now we have twenty divided by five which is four times one that would be four okay now um is seven plus 4 that would be 11 over 20 x is equal to 1. paramount 11 over 20 multiply that in both sides by the reciprocal 11 over 20 that would be 20 over 11. this will be x is equal to 20 over 11. now who's not incoming mixed number that would be one hour and 20 minus 11 that would be 9 so 9 1 and 9 over 11 hours okay 11 so nine divided by eleven that would be uh i guess going two decimal places point eighty two so one point eighty two hours congratulating go in minutes that would be uh 9 over 11 times 60 okay so that would be 540 divided by 11. that would be one hour and 49 seconds around up not in 49.1 minutes or 49 minutes okay so yeah you need to get that in now whether it be this this or this is the traditional method make sure that you ask them whether it be fraction now the next question would be can we use and 5. is we multiply them okay so we multiply one and not in so now we have 40 times five uh that would be 200 over tap assume sumnila 14 plus 5 that would be 19 okay so 200 over 19. now if you notice uh 20 over 11 again okay so again um this is just an example of how means i'm always teaching or trying to teach you faster ways of solving problems than exam okay now um if you want more i'll be posting more questions on my instagram account so if you don't follow me yet follow me at la camarevilla on instagram and at teamlightcaden other than that thais instagram story function the quiz may quiz option you can find out as soon as possible and if you're on tech talk you can follow me at team leica for the math and english lessons and at la camavilla for for the more personal stuff my motivational videos advice tips okay see you guys online all right i hope you learned something new today if you did click thumbs up make sure that you share this video with your friends and as always if you want to reach out to me directly get the reviewers at me join the online or library events you can go to www.facebook.com team leica for more information if you haven't subscribed yet subscribe now hit that bell icon for more videos this is just the first video the series nato we will be talking about the other variations of topic nato soon so i would hate for you guys to miss those things thanks guys and as always it's a channel that will never stop learning i'll see you next video and bye for now [Music] [Music] [Music] you

Channel: Team Lyqa

Views: 139,898

Keywords: Civil Service Exam Review, Civil Service, Civil Service Examination, SAT, SATs, SAT Review, English, Vocabulary, Team Lyqa, CSE Review, UPCAT, LET, UPCAT review, LET review, free civil service review, free civil service exam, napolcom, napolcom review, afpsat, afpsat review, logical reasoning, Philsat, MTAP, algebra, word problems, physics, work problem, work problems, work word problems, work problems in algebra

Id: p-baQUlft7c

Length: 24min 23sec (1463 seconds)

Published: Mon Sep 21 2020