In community college I used this guys videos for calculus, at university i used him for organic chem and physics, now that im trying to be a pilot im using his videos to study for the aviation entrance exams. When I make it im gonna owe my career to this dude ive never met or seen lol.
I graduate with a degree because of you. I joined the aviation industry because of you. Now am reading to become a pilot. Whoever you are, may God bless everything you have!!
This instructor is one of the best along with Tyler Dewitt! They are excellent at presenting all kinds of math and chemistry problems. I teach the subjects myself, and I frequently recommend their videos to students.
This guy is very helpful. I really hate maths but because of him math is become easier. I got higher grades in math because of this guy thanks a lot. You're more effective then my math teacher. Keep it up 🙏
Hahah I just graduated and these are the kind of math questions that are actually necessary in the real world. High school taught me nothing of importance
When I search about math problems I really scroll down until I find your channel because I know I'll understand it when its this channel :) new subscriber here :)
Best tutor on youtube, hands down. That's why he has so many subscribers. Does anyone know what he uses for his presentations. I'm an online tutor (I'm good and I'm cheap for one-on-one sessions through Calculus), I have to get whatever he uses!
JG, I graduated at KYU in Uganda with an A in calculus exam because of you. Thanks so so so so much. Your work was so awesome in support of my excellent performance. It was the only A in the exam during my year.
I'm dumbfounded when I realized that the shortcut formula is just the one you use in parallel circuits resistance and it does make sense now! Of course you will use a parallel solving equation to solve a parallel related problem...
Mr. Organic Chemistry Tutor, thank you for an excellent analysis on Time and Work Problems- Shortcuts and Tricks in Algebra One/Two. I found word problems challenging, however from watching and do these types of problems increases my understanding of the subject.
For the second problem. Mark and Kelly can finish the job in 4 hours working together, but Mark could do it in 6 hours if he worked alone. So in one hour he completes 1/6 of the job: Also in 1 hour both of them could complete 1/4 of the job. We don't yet know what fraction of the job Kelly could complete in 1 hours so set it to be y , therefore Kelly could complete 1/y of the job in 1 hours.. set up the equation . 1/6 (Mark) + 1/y (Kelly)= 1/4 (the fraction of the job both could complete working together so solving for y gives 2 y + 12 =3 y , y=12.. Kelly alone could finish the job in 12 hours
thank you for this sir, my mind became open to difficult problems after I watched your videos. Thank you also for encouraging us to do first the solving before we continue to watch, it helps me to think and analyze also. Thank you
Si jg u r so helpul..u know i hve leant a lot from your you tube channel...that time i dont even know even adding fraction..now it is easy for me..now i learn work problem..thx a lot sir jg...i watched almost all ur vedeos..God bless you sir JG..from philippines..
Sally painting 1/3 of that room per hour while John is painting 1/6 of that room per hour. Together they paint half of the room per hour 1/3 +1/6 or 2/6 + 1/6= 3/6 or 1/2 in one hour . Then in two hours they would finish that room when working together. So answer is two hours
19:02 Lisa , Karen and Tom took 2 hours (working together). Lisa 3 times faster than Tom, and Karen twice (2) as fast as Tom .How long will it take Karen to complete the task on her own? Let 6x (hours) be the time its takes Tom to complete the task ALONE, therefore it will take Lisa 2x (hours) to do so ALONE, AND Karen 3x (hours) to do so ALONE. Therefore, it would take all three to complete the task in an HOUR by the following equation 1/6x (tom) + 1/2x(lisa) + 1/3x (karen) = 1/2 1 + 3 + 2 =3 x or 6=3x or x =2.. recall tom is 6x , so 6x2= 12hrs, lisa 2x, so 2x2= 4hrs and karen 3x so 3 x 2= 6 hrs. Answer : it will take KAREN 6 hours to complete the task on her own.
hey i just wanna ask how did you get tom's hours did you multiply the 3×2? from lisa and karen? also how did you get lisa and karen's time? did you divide 6x to 3 for lisa and 2 for karen?? HOPE U'LL ANSWER THISSS TIA!!!!!
@@abejueladanieljaymarkc.4062 You can use x for Tom or 6x (or any other unknown, 9x, 100x, etc.), but make sure that Lisa is 1/3 of Tom's unknown and Karen is 1/2 of Tom's unknown. I used 6x for Tom since, for me, it was easier to get 3x and 2x for Lisa and Karen, respectively. Let us use 'x' instead for Tom; then the fraction of the work he would do in one hour is 1/x and the fraction Lisa would do = 3(1/x) or 3/x and the fraction Karen would do = 2(1/x) or 2/x since Lisa and Karen worked 3 and 2 times as fast as him, respectively. All three completed their fraction of the work per hour by this equation 1/x + 3/x + 2/x= 1/2 = 6/x= 1/2 6 x 2= 1. x (cross multiply) = 12= x, so Tom would complete 1/12th of the work in 1 hour, so he would complete the ENTIRE work in 12 hours. Still, since Lisa worked three times as fast as Tom, she would complete it in 4 hours (12 divided by 3) by herself, and since Karen worked twice as fast as Tom, she would complete it alone in 6 hours (12 divided by 2). If I had used '6x' instead for Tom, then (if done correctly, x would =2) and I would have to multiply 6 by 2 to get 12 for Tom and divide 12 by 3 to get Lisa's 4 hours ( since she worked three times as fast as Tom) and also divide 12 by 2 to get Karen's 3 hours(since she worked twice as fast as Tom) If I had used '3x' for Tom, then I would have to use 'x' for Lisa and '1.5'x for Karen ( and if done correctly, x =4, which would be Lisa) and would have to multiply 4 x 3 to get Tom (12) and would have to multiply 4 by 1.5 to get Karen's (6) or divide 12 by 2 to get Karen's (6). So it doesn't matter if I used 'x' or '6x', etc., for Tom, provided I used 1/3 of Tom's unknown for Lisa and 1/2 of Tom's unknown for Karen.
whew chile...the lisa, karen and tom word problem gave me headache problems lol...Love your videos. It really helped me pass my entrance exam. Thank you alot.
I do not now why but I'm starting to feel something with his voice and intelligence after watching more than 10 videos. Like I like to hear it over and over again. Shemss HAHAHAHAHA🙈
Another way to solve these kind of problems (or the logic behind it) is to assume that to complete a task you require 100 work units, you can then use the amount of time taken from each worker how much work units they can complete in 1 hour, you add them up to find out the amount of work units done by everyone working simultaneously in 1 hour and divide 100 work units by it.
8:25 Alice can complete 1/6 of the task , Kristen 1/9 and Ronald 1/18 in an hour or 3/18, 2/18 and 1/18 respectively. Therefore if they worked together they could complete 6/18 of the task (3+2+1 over 18) in 1 HOUR,, 12/18 of the task is left (or twice as much of what they would/could complete in one hour). So working together they could complete the task in 3 hours. Answer 3hours
Your contents are the best but I have some comments and it is better if you use the background white color and if the fonts of your texts are bigger I think it's going to be perfect
Does these math problems (hours) formula apply for school? Does it work? For school. For instance, middle, high, and etc. Plz answer. Your videos are extremely useful! Like for example, if we are doing a math problem about hours, does this formula that you showed us work? I really want to know!
The ratio of their contributions is 3:2:1 .So Lisa does half the work; Karen 1/3 and Tom 1/6 in a two hour period. Since Karen does 1/3 of the work in 2hours, on her own it would take 3 by 2 hours= 6 hours. Lisa would 4 hours and Tom 12 hours.
Final Exams and Video Playlists: www.video-tutor.net/
In community college I used this guys videos for calculus, at university i used him for organic chem and physics, now that im trying to be a pilot im using his videos to study for the aviation entrance exams. When I make it im gonna owe my career to this dude ive never met or seen lol.
Pls come back here to tell the result.
@@rrts1942 I scored in the 70th percentile (top 30%) on my exam. So I did great! This guy is the real deal
Congratulations!
safe to say you owe this man your first check
I'm using him as well to study for ASTB and he breaks down everything so well
I graduate with a degree because of you. I joined the aviation industry because of you. Now am reading to become a pilot. Whoever you are, may God bless everything you have!!
Hi mate congratulations, can I ask what career you currently do within the aviation industry? Thank you
wow congrats!
Congrats Bro!!!🎊🎊🎊😎😎😁😁😁
Same I’m trying to join the navy as a pilot 😬 gotta get the test score first
I'm also trying to become a pilot but, it's really hard I heard but still I'm gonna try.
From Nigeria here, you're a genius sir.. Got an exam next week, and this just solved my problems.. Bless Sir
Update us about your exam bro. Btw goodluck
@@buffsamson Sure I will, it's tomorrow...Thank you
Goodluck brother you can do it
@@WinsteinDc how did it went brother?
@@buffsamson Just about texting you now.. It went fine.. God bless, really appreciate
This instructor is one of the best along with Tyler Dewitt! They are excellent at presenting all kinds of math and chemistry problems. I teach the subjects myself, and I frequently recommend their videos to students.
This guy is very helpful. I really hate maths but because of him math is become easier. I got higher grades in math because of this guy thanks a lot. You're more effective then my math teacher. Keep it up 🙏
Hahah I just graduated and these are the kind of math questions that are actually necessary in the real world. High school taught me nothing of importance
YOU SOUND LIKE A 2 YEAR OLD !!!
JK
this is middle school math though? You must've went to a bad high school
@@sagatad.8245 yes buy algebra in middle school?
I was struggling with this concept to prep for the SAT but just watching two examples of your video made me understand the whole thing, U LEGEND
Lol
When I search about math problems I really scroll down until I find your channel because I know I'll understand it when its this channel :) new subscriber here :)
War ninkaan legend waaye walhi
This guy is gonna get me through school. Better and more efficient than any teacher I've had.
Best tutor on youtube, hands down. That's why he has so many subscribers. Does anyone know what he uses for his presentations. I'm an online tutor (I'm good and I'm cheap for one-on-one sessions through Calculus), I have to get whatever he uses!
Julio Gonzales what a great teacher you are! I have never seen my entire world a teacher like you.
JG, I graduated at KYU in Uganda with an A in calculus exam because of you. Thanks so so so so much. Your work was so awesome in support of my excellent performance. It was the only A in the exam during my year.
this guy deserves a billion sub
that's right john. i paint faster than you
I am from Ghana currently in the us and I studying for the ASVAB in next year God willing and I must admit you tutoring is awesome
Thank you
I'm dumbfounded when I realized that the shortcut formula is just the one you use in parallel circuits resistance and it does make sense now! Of course you will use a parallel solving equation to solve a parallel related problem...
Thanks dude you LITERAALY help me in both the SAT, IB, and the basic
Respectt
bro watch the complete tutorial on time and work
th-cam.com/video/4h_zjRGKUtU/w-d-xo.html
Mr. Organic Chemistry Tutor, thank you for an excellent analysis on Time and Work Problems- Shortcuts and Tricks in Algebra One/Two. I found word problems challenging, however from watching and do these types of problems increases my understanding of the subject.
I tried to figure this for DAYS so I could explain it to my Son for school. I finally understood it thanks to you!!!
For the second problem. Mark and Kelly can finish the job in 4 hours working together, but Mark could do it in 6 hours if he worked alone. So in one hour he completes 1/6 of the job: Also in 1 hour both of them could complete 1/4 of the job.
We don't yet know what fraction of the job Kelly could complete in 1 hours so set it to be y , therefore Kelly could complete 1/y of the job in 1 hours.. set up the equation . 1/6 (Mark) + 1/y (Kelly)= 1/4 (the fraction of the job both could complete working together so solving for y gives 2 y + 12 =3 y , y=12.. Kelly alone could finish the job in 12 hours
kelly is a slacker fr
6:45 correction the LCM is 12 but this it still works eitherway
You are THE BEST at explaining things, I only look for your videos now when I need math help. Thank you!
thank you for this sir, my mind became open to difficult problems after I watched your videos. Thank you also for encouraging us to do first the solving before we continue to watch, it helps me to think and analyze also. Thank you
Last question blew my mind. You're the best
Si jg u r so helpul..u know i hve leant a lot from your you tube channel...that time i dont even know even adding fraction..now it is easy for me..now i learn work problem..thx a lot sir jg...i watched almost all ur vedeos..God bless you sir JG..from philippines..
Simpliest solution ive searched.This guy is the answer
Sally painting 1/3 of that room per hour while John is painting 1/6 of that room per hour. Together they paint half of the room per hour 1/3 +1/6 or 2/6 + 1/6= 3/6 or 1/2 in one hour . Then in two hours they would finish that room when working together. So answer is two hours
I used to just watch and see another video when done. But this time, i 👍 clicked this button and typed a comment.
19:02 Lisa , Karen and Tom took 2 hours (working together). Lisa 3 times faster than Tom, and Karen twice (2) as fast as Tom .How long will it take Karen to complete the task on her own?
Let 6x (hours) be the time its takes Tom to complete the task ALONE, therefore it will take Lisa 2x (hours) to do so ALONE, AND Karen 3x (hours) to do so ALONE. Therefore, it would take all three to complete the task in an HOUR by the following equation 1/6x (tom) + 1/2x(lisa) + 1/3x (karen) = 1/2
1 + 3 + 2 =3 x or 6=3x or x =2.. recall tom is 6x , so 6x2= 12hrs, lisa 2x, so 2x2= 4hrs and karen 3x so 3 x 2= 6 hrs. Answer : it will take KAREN 6 hours to complete the task on her own.
hey i just wanna ask how did you get tom's hours did you multiply the 3×2? from lisa and karen? also how did you get lisa and karen's time? did you divide 6x to 3 for lisa and 2 for karen?? HOPE U'LL ANSWER THISSS TIA!!!!!
@@abejueladanieljaymarkc.4062 You can use x for Tom or 6x (or any other unknown, 9x, 100x, etc.), but make sure that Lisa is 1/3 of Tom's unknown and Karen is 1/2 of Tom's unknown. I used 6x for Tom since, for me, it was easier to get 3x and 2x for Lisa and Karen, respectively. Let us use 'x' instead for Tom; then the fraction of the work he would do in one hour is 1/x
and the fraction Lisa would do = 3(1/x) or 3/x and the fraction Karen would do = 2(1/x) or 2/x since Lisa and Karen worked 3 and 2 times as fast as him, respectively.
All three completed their fraction of the work per hour by this equation 1/x + 3/x + 2/x= 1/2 = 6/x= 1/2
6 x 2= 1. x (cross multiply) = 12= x, so Tom would complete 1/12th of the work in 1 hour, so he would complete
the ENTIRE work in 12 hours. Still, since Lisa worked three times as fast as Tom, she would complete it in 4 hours (12 divided by 3) by herself, and since Karen worked twice as fast as Tom, she would complete it alone in 6 hours (12 divided by 2). If I had used '6x' instead for Tom, then (if done correctly, x would =2) and I would have to multiply 6 by 2 to get 12 for Tom and divide 12 by 3 to get Lisa's 4 hours ( since she worked three times as fast as Tom) and also divide 12 by 2 to get Karen's 3 hours(since she worked twice as fast as Tom)
If I had used '3x' for Tom, then I would have to use 'x' for Lisa and '1.5'x for Karen ( and if done correctly, x =4, which would be Lisa) and would have to multiply 4 x 3 to get Tom (12) and would have to multiply 4 by 1.5 to get Karen's (6)
or divide 12 by 2 to get Karen's (6). So it doesn't matter if I used 'x' or '6x', etc., for Tom, provided I used 1/3 of Tom's unknown for Lisa and 1/2 of Tom's unknown for Karen.
@@devondevon4366 OMG!! Thankyou so muchhhhh i understand better now thankyouuu :>>>>>
This guy honestly teaches better than most teachers
💯
Everything about this channel is perfect. Thank you to this teacher and your team.
very helpful - covering all types of possible questions.
I have watched many different TH-cam to understand this topic. Your are the best! Thank you so much!
whew chile...the lisa, karen and tom word problem gave me headache problems lol...Love your videos. It really helped me pass my entrance exam. Thank you alot.
Published 5yrs ago but still saving lives in 2024
I don’t know what to say about your math videos, really appreciate it!! I passed my math exam because of you.
this was simply, I feel dumb for not knowing this, thank you!
You're welcome
@@TheOrganicChemistryTutor we need more math problems plsss
anime Lover
😎
The best tutor in youtube.
Thank you for this hope you make more content.
I agree with the others about how helpful these videos are and am just as grateful. Thank you so much.
i love this channel so so so much. my friends beg me to teach them the things i learn from him
Should inform them about the chennel. Don't be selfish
True...so they cn learn too..
best math channel on youtube
TNX so much man Ur guiness & LOVE Ur Voice 😊❤
Thank you very much! I am in year six and I will be doing the 11plus this video really helped!!
Excellent dissertation, sir. I was with you right up to the last problem.
Brooooo this is so helpful!!!!!! Thank you very much!!!!!!!!!! 💙💙💙
bro watch the complete tutorial on time and work
th-cam.com/video/4h_zjRGKUtU/w-d-xo.html
Please go over these kind of videos. Tricks and shortcuts videos are so helpful like lmfao
What a brilliant teacher!!!!!!!
You're amazing!!! I exactly enjoy math all because of your videos.
TH-cam is the best teacher
He’s gonna be the real reason I pass tf put this civil service test
Just commenting so u get more views. Keep up the great work!
YOU'RE SUCH A LIFESAVER TYSM!! ❤❤❤❤❤❤
This man is very helpful for differnt subjects
This video is so helpful specially for the future math educators.💕 You're so genius
Hi! I just want to thank you. Your videos helped me a lot and I passed the examination. Thank you very much. 😊
I love your videos.. you teach better than my math teacher.
I'm preparing for my upcoming entrance exam and your videos are really helpful sir. Thanks a lot💕
Hi! Can I request a video involving work problems about man-hours? Thanks! Love your contents!
I do not now why but I'm starting to feel something with his voice and intelligence after watching more than 10 videos. Like I like to hear it over and over again. Shemss HAHAHAHAHA🙈
nice voice and ur a smart teacher
You're a great teacher. THANK YOU.
u are a math saviour thnx so much
Man, I wish I had you as my math teacher.
Fantastic explanation!!!. Thank you very much for your videos. They are awesome!!!!
Thank you very much! It's very helpful.
people before aug 17, 2018: (insert internal dying and screaming)
Love the way u derive this formulas
You are my hero sir ❤❤❤❤❤❤
You make this so easy, thanks a lot ❤
Thank you sir ❤
No ads, no shoutouts, just helping with math 🙏
UR A LIFEEAVER MAN HOW CAN I THANK YOU😍
Another way to solve these kind of problems (or the logic behind it) is to assume that to complete a task you require 100 work units, you can then use the amount of time taken from each worker how much work units they can complete in 1 hour, you add them up to find out the amount of work units done by everyone working simultaneously in 1 hour and divide 100 work units by it.
Kindly write example for better elaboration. Write 8:04 for this question
I'm not good at Math and Science but still i take CE course. How brave I am.😂
Yeah me too I'm a ce student
not surprising, also a ce
student here
Thank you sir! it was very useful for me
Thank you! Many blessings♥️
You are just too good... How do u do these?....awesome
bro watch the complete tutorial on time and work
th-cam.com/video/4h_zjRGKUtU/w-d-xo.html
Excellent video.
i was so happy that i was able to do the last problem
8:25 Alice can complete 1/6 of the task , Kristen 1/9 and Ronald 1/18 in an hour or 3/18, 2/18 and 1/18 respectively. Therefore if they worked together they could complete 6/18 of the task (3+2+1 over 18) in 1 HOUR,, 12/18 of the task is left (or twice as much of what they would/could complete in one hour). So working together they could complete the task in 3 hours. Answer 3hours
Completely understandable reaching.
thanks for explaination !!
Your contents are the best but I have some comments and it is better if you use the background white color and if the fonts of your texts are bigger I think it's going to be perfect
I'm really grateful for this video's. If it weren't for them I would have failed my maths test for shore.
Thank you very much supper appreciated your video it helped me a lot.:)
Thank you much, i have clearly understood you sir
thank you very much! 🤎
How'd u do that? I'm like "???" But thankiee so much
Very helpful!
Great instruction!
I love you man really helpful
Does these math problems (hours) formula apply for school? Does it work? For school. For instance, middle, high, and etc. Plz answer. Your videos are extremely useful! Like for example, if we are doing a math problem about hours, does this formula that you showed us work? I really want to know!
The ratio of their contributions is 3:2:1 .So Lisa does half the work; Karen 1/3 and Tom 1/6 in a two hour period. Since Karen does 1/3 of the work in 2hours, on her own it would take 3 by 2 hours= 6 hours. Lisa would 4 hours and Tom 12 hours.
Oh my god, you always save my life! Thank you :D
This is so great. I'm helping a college student and I sure wish this channel existed when I was in highschool
bro watch the complete tutorial on time and work
th-cam.com/video/4h_zjRGKUtU/w-d-xo.html
thankyou! for the video it helped a lot
Correct. Problem #5 requires a bit more thought to work through. Aya will take 4X longer to work on the bike.
THANK YOU SMMMM❤❤ I HAVE A TEST TM WISH ME LUCK