Learn how to solve this math puzzle. Step-by-step explanation by PreMath.com
Пікірлер: 45
@kishordhakal45793 жыл бұрын
It was really easy But the way u do it it become more easy to understand
@PreMath3 жыл бұрын
Thanks Kishore Thanks dear for the feedback. You are awesome 👍 Take care dear and stay blessed😃
@mustafizrahman28223 жыл бұрын
Answer is 15 3 4 2 Or, 9 9/5 10 8/10. However, it was easy question. Thanks for sharing.
@PreMath3 жыл бұрын
Great job Rahman dear You are awesome 👍 Take care dear and stay blessed😃
@mustafizrahman28223 жыл бұрын
@@Nikioko Hmmm. I have thought so before solving it.
@mustafizrahman28223 жыл бұрын
@@Nikioko No problem. Answer is answer. After all, I am agree with you.
@MarieAnne.3 жыл бұрын
@@Nikioko Maybe so, but there's a more recent similar problem with only one solution that involves some non-integers. I would never assume that solutions must be integers unless specified.
@dougallred24433 жыл бұрын
You can get a 9. B1.8. C10. D.8. Also works
@TheFlax333 жыл бұрын
That " find factors , divide by a and then reverse signs " vid sure comes in nicely ..thanks for your time.
@peterpeggycheah77193 жыл бұрын
Up boxes 15 divided 3=5, Up n Low boxes 15+4=19, 2nd U n L boxes 3-2=1,2nd Low boxes 4X2=8 Ans
@MrPerfs3 жыл бұрын
Using guess and check with a little logic, a solution becomes evident. But by doing this you show that there is a second solution. Guess and check people didn't even consider that, they just found a solution that worked and stopped thinking.
@ChronicSkater2 жыл бұрын
Was almost there when I did it in my head but knew had to be something more so had to watch
@ducgiang54022 жыл бұрын
A=5B=>5B+C=19 (1) B-D=1 (2) Subtract (1)&(2)=>C+5D=14 C=8/D=>5DD-14D+8=0 5D(D-2)-4(D-2)=0 D=2 or D=4/5 If D=2=>A=15,B=3,C=4 If D=4/5=>A=9,B=9/5,C=10
@rohankumarroy70593 жыл бұрын
Sir your vdo helps a lot in recalling basic maths concepts,keep uploading 👍👍👍
@PreMath3 жыл бұрын
Thank you, I will Thanks Rohan dear for the feedback. You are awesome 👍 Take care dear and stay blessed😃
@242math3 жыл бұрын
used a, b, c, d and solved it using 5d^2 -14d +8 = 0, thanks for the challenge bro
@PreMath3 жыл бұрын
Fantastic! Thanks dear friend for the feedback. You are awesome 👍 Take care dear and stay blessed😃
@govindashit65243 жыл бұрын
Thank you, my dear sir. Love from India.
@PreMath3 жыл бұрын
Most welcome Govinda dear! You are awesome 👍 Take care dear and stay blessed😃
@RashmisABCD3 жыл бұрын
Watching with my kids today, they doing with you.. excellent presentation lk95
@VolkGreg2 жыл бұрын
Second set (a,b,c,d) = (9,9/5,10,4/5).
@steveshsi74863 жыл бұрын
This is the first of his videos that I could do. :-)
@virtualtourist3613 жыл бұрын
Amazing!!! What a nice video!!! 😊😊👏👏
@PreMath3 жыл бұрын
Thank you! Cheers! Thanks dear for the feedback. You are awesome 👍 Take care dear and stay blessed😃
@hichamroka94282 жыл бұрын
Just terrefic. Thanks Sir
@shona-sof2 жыл бұрын
I had this done in my head quickly, but I was curious to follow the math. But when you ended up with two different values for B and just "picked one" you completely lost me.
@kishordhakal45793 жыл бұрын
Sir one little request plz solve math olympiad question too hoping more video would come later thank u
@PreMath3 жыл бұрын
Sure dear. I'm working on that one as well. Thanks for asking.
@kishordhakal45793 жыл бұрын
@@PreMath thank u sir lots of love fron nepal🇳🇵🇳🇵❤️
@Manishjha_mj3 жыл бұрын
Very easy 15 ,4,3,2
@mnazar36012 жыл бұрын
Top left = 15 Top right = 3 Bottom left = 4 Bottom right = 2
@josephmowers9392 жыл бұрын
I did this in my head , a is 15 b is 3, c is 4 and d is 2
@ghmaxiron26393 жыл бұрын
Nice move👍
@loveghe3 жыл бұрын
15, 3 Top and 4, 2 bottom
@vmpscgksocialscience19463 жыл бұрын
Super🤝
@vaibhavgupta5359 Жыл бұрын
Without seeing the video trying to tell the answer 15+4=19 15/3=5 3-2=1 4*2=8
@mumtazrasul82633 жыл бұрын
15, 3 and 4, 2
@alainsoler77003 жыл бұрын
15 3 4 2 by head in ten seconds
@PreMath3 жыл бұрын
Excellent Alain! Thanks dear for the feedback. You are awesome 👍 Take care dear and stay blessed😃
@lilywoo73093 жыл бұрын
15/3=5,4*2=8,15+4=19,3-2=1
@TheFlax333 жыл бұрын
Yeah . No brain burn...i remembered vid------find factors divide by a and reverse sign. Boom answer......thanks for your time.
@king_haku3 жыл бұрын
Sir I mean no offense when I say this, but these types of problems are starting to get a bit boring. I suggest doing problems that are more challenging, like math contest problems, or hard algebra, geometry, or even calculus problems.
@mnazar36012 жыл бұрын
Top left= 15 Top Right=3 Bottom left= 4 Bottom Right =2