It is so cool to see people using different approaches to arrive at the correct answer. We do not need to seek the cleverest or quickest solution. The more experienced you are in math the more you see the shortcuts. But shortcuts work because the numbers are convenient. Use them if you can, but do know the way to solve the long way. In real life math that is usually how you must do it.
@SuperBartet10 ай бұрын
I'm 67 years old, within 2 seconds of seeing this I doubled it up to 16 and 100, so the answer is 16 % . I was in a shop sometime ago and the assistant (I would say about 25yo)serving me had to use a calculator to work out 10% of £99.95
@panlomito10 ай бұрын
10% of 50 is 5 (too low)... 20% of 50 is 10 (too high) so the answer is between 10 and 20%... The difference between 5 and 8 (= 3) is bigger than 8 and 10 (= 2) so the answer must be higher than 15 and lower than 20%... Can you guess the right answer already? This is a downside of multiple choice questions: you can estimate the answer. Of course you can calculate the correct answer as well... x% . 50 = 8 so x% = 8/50 = 16/100 = 16% Or like this: x/100 . 50 = 8 so x/2 = 8 and x = 16%
@roberthuron916010 ай бұрын
In that equation,you could do it,by multipling by 1/2,install of 50! X= 8× (1/2)= : Equivalent! Correction on above,should have been,"instead" of! The equation would work ultimate as 2× 8= 16!! Another work around,minus calculator! Pencil and Paper- Regent exams from 6th grade! Thank you,for the refresher course! Thank you 😇 😊!
@martinfield235810 ай бұрын
Per cent means per 100. Therefore double both to get to 100 = 16
@thenetsurferboy10 ай бұрын
No. See my reply
@holydiver7310 ай бұрын
That’s how I did it.
@rickholeАй бұрын
Your math-mind is working well, indeed. Seeing that 16 is what percent of 100 to be the same problem as the one stated is a giant step in doing mental math. Keep up the good work!
@richb157610 ай бұрын
I just did it like this. Yes I know my math skills suck 50% of 50 is 25. 50% of 25 is 12 1/2 That puts us at 25% 50% of 12 1/2 is 6 1/4 Thats 12 1/2 percent Since 8 is higher than 6 1/4 And the next highest choice after 12 is 16. Thats the correct number. 🤗
@jjx962510 ай бұрын
A long time ago they taught us a formula. R=p/b where rate is the percent described in the problem ,base is the larger number and p is the smaller number . P=br and B=p/r divide 8 by 50. 8/50=16%.
@charlesmitchell584110 ай бұрын
B) 16%
@jenniemerkley296310 ай бұрын
In the case of a multiple choice, an estimate can be used. Since 5 would be 10% of 50 and we know that 8>5. Check the options for an answer that is > 10%.
@HR-wd6cw5 ай бұрын
Even if you were bad at percentages, you could still use the process of elimination which you sort of showed here (with the 4% example) and We can use our basic knowledge of tens I guess( 10% and 20%) for example. We can figure in our head that 10% of 50 is 5, but that's smaller than 8, so it's more than 10%. But 20% of 50 is 10, which is greater than 8, so the answer lies between 10% and 20%. You could also go further (or skip and try answer C) since 32% is roughly 1/3. If you were to divide 50 by 3 you would get 16.67 technically, but quick math would lead you to roughly 15 which would at least tell you the percentage is still too high (as even 15 is greater than 8), so it can't be 32%. And lastly 44% is close enough to 50% that you can conclude again that roughly 50% of 50 is 25, still too large. So if you really didn't know how to do the percentages you could use this method to narrow it down but it would take longer. But by estimating what the percentages equal you can narrow down the answer (in this problem at least) pretty quickly and that's what is being showed, but in a more detailed manner I guess. But if you know how to quickly calculate values based on 10% increments it can make this go faster (10% of 50, drop the 0 so 5, 20% is double 10% so multiply 5 by 2 and get 10, too large).
@todallard879110 ай бұрын
simply use 100's so you turn 50 into 100 (50x2=100) so 8x2=16 so much faster and use the other math if the numbers don't give you easy multiple or dividable numbers.
@btpcmsagАй бұрын
7:00 check "The definition of percent is when we compare a number to 100." At 10:35 John says "...compare a number BY 100." So is it TO or is it BY?? It seems to me that this is a poor definition. I would prefer to say percent means we have multiplied a number by 100. Comparing a number to another is not an operation. It is vague. It could mean finding the difference (subtraction), or counting the digits (100 has 3 digits), or how many zeros (100 has 2 zeros).
@Ayelmar10 ай бұрын
At the title card, I believe the answer is b) 16%. Let's start by writing the problem as 50 * p = 8, with p being the percentage. Divide both sides by the 50: p = 0.16, or 16%.
@jpercy481110 ай бұрын
The ‘trick’ is built into question (8) is what percent of 50%. = 8 is 8% of 100 therefore 8 is 16% of 50%
@Partysize210 ай бұрын
It is a fraction 8 over 50. Just divide 8 by 50 and move the decimal left 2 places to get 16%. Just by inspection you know it is just under 20%.
@RogerRamjet15610 ай бұрын
An old teacher explained the magic of the "Is/Of" Box - the same as in your last example. Would've saved me headaches if we had the internet back in '72! Thanks for the trip down memory lane 😀
@warblerab295510 ай бұрын
technically, the question in the title of the video is different than the question in the video. The question in the title asks what percent is 8 of 50%, the question in the video asks what percent is 8 of 50.
@terry_willis10 ай бұрын
No smiley face for John.
@darkst0rm210 ай бұрын
Agree, the title could have been worded better, but I think we all knew the intent
@warblerab295510 ай бұрын
@@darkst0rm2 You are probably right.
@ab_ab_c10 ай бұрын
re: "The question in the title asks what percent is 8 of 50%" Wrong. The title clearly shows "8 is what percent of 50%" (meaning 8 = ?% of 50 >>> 8 = %50 >>> 8/50 = % >>>.16*100 = 16%
@warblerab295510 ай бұрын
@@ab_ab_c "re: "The question in the title asks what percent is 8 of 50%" Wrong" um here is an exact quote of the video title: "8 is what percent of 50% A SIMPLE Percent question that MANY will get WRONG!" it is asking what percent is 8 of 50%. or in other words 8 is what percent of 50%. Also 16% would be correct if asked 8 is what percent of 50, but it asked 8 is what percent of 50%. (that would be 8/.50 which = 1600%.
@readresp899410 ай бұрын
It just seems so simple to think that X/100 =8/50. . . X=800/50. . .. 800/50 =16. X=16. (Instead of calculating out all those options).
@ab_ab_c10 ай бұрын
part/whole*100 = percentage 8/50*100=16%
@jennymurray287310 ай бұрын
Double 50 then double 8 =16
@johntaylor481710 ай бұрын
I wouldnt' have thought of that. thanks
@MissLibertarian10 ай бұрын
I had 5x10=50 and that 10 was 20% memorized in large part due to $ currency practice. 8 was close to 10, so I figured the 8 was a smaller number and therefore a slightly smaller percentage, and 16 was the closest answer choice. INTJ brain. Now, my Dad used to find errors in math texts and tests all the time (possibly using a similar technique to see that something was wrong), and he would go talk to the teachers, so you can’t always trust that method of test taking. For this one, it worked to just kind of see the answer, but clearly it could have been made more challenging.
@tomtke735110 ай бұрын
2:01 this is a confusing question meaning the confusion is the purpose of the question 8 is what % of 50 after solving the number N will fulfill: 8 = N × 50 8/50 = N 16/100 = N 0.16 = N but % = 100 so N = 16% VERIFY REPEAT 50×16% =?8 2×[50×16%=?8] 100×16% =? 16 16 = ❤ 16✔️ SORRY.... I am not thinking properly to ACCURATELY notate my steps. refresh... what is "%" as a good definition a % is a part of 100. 1% is 1 part of 100. 10% is 10 parts of 100. Probably a good way to think about % is pennies to the dollar. Typically (¿always?) sales tax is given in %. 3% sales tax is 3 pennies to the dollar. This problem is 8 is what percent of 50 or 8 pennies is what percent of 50 pemnies. Gotta normalize to 16 pennies to 100 pennies which is 16% of $1.
@kudiratmuyibi-ys9zl10 ай бұрын
A ns: 16
@lenoraberendt75010 ай бұрын
You make math so much fun! 👍
@earnesta.brooks712310 ай бұрын
16%
@aussietaipan870010 ай бұрын
I instantly knew that 10% of 50 is 5 and 20% of 50 is 10 and with 8 being between 5 and 10, the % answer must be 16 and this was easy to test as per all the methods to actually calculate it.
@debrataylor875910 ай бұрын
I’m rubbish at maths. Had a dreadful maths teacher at school who struck the fear of god into me. Hence I grew up dreading maths. However, I’m strangely fascinated by it too and love watching your lessons 🙏
@btpcmsagАй бұрын
Percent means "PER 100". ("cent" is from the Latin, as C is the Roman numeral meaning 100) I don't hear that sentence in this video. Literally, a number expressed as a percent has been multiplied by 100, and to eliminate the % sign, you must DIVIDE ➗ BY 100. "Per" always means "divided by." MPH is short for "Miles Per Hour," or miles ÷ hours, M ➗ H. Many years ago, it was commonly said that percent means "times 100," but that doesn't really fit in the language of mathematical precision, so it's a good thing to forget about it.
@drahcirnevarc915210 ай бұрын
8 = 8% of 100 50 = 100/2 8x2 = 16 Ergo 8 = 16% of 50. This took me about 5 seconds, mainly because I'm 60 and therefore had a proper education.
@bambam009910 ай бұрын
Since 50 is a multiple of 100, simply multiply by 2 so it becomes, 16 is what % of 100?
@NevervousOtoole10 ай бұрын
Easy× 8 by 3.142 ,divide by the square root of pi then multiple by your age.
@cecilthrift274710 ай бұрын
I knew the answer on site, don't know how I do that. I hated math until I went to a Technical college years later. I had an instructor who taught me a whole different approach to math.
@thinkaboutit..ministries10 ай бұрын
50/100 = 0.5 is 1% ...1 is 2% 2 is 4 % 4 is 8 % therefore 8 is 16 %
@beentheredonethatunfortunately9 ай бұрын
Seems there's loads of comments making it really complicated. As others have mentioned just double it. I honestly thought I must have missed something it seemed so simple and spent far longer checking my logic made sense and I hadn't made some stupid mistake than it took to think about the problem to get the percentage and hence answer.
@mauriziograndi17503 ай бұрын
“We have to find first 1% of 50, which is 50/100=0.50” “Now all we have to do is to see how many times that 0.50 goes into 8” “8/0.50 gives 16 that is 16%”
@axemanslim10 ай бұрын
16
@Stardust1489 ай бұрын
Thank you
@ronbass813610 ай бұрын
Simple. Multiply each by 2. 16%
@mauriziograndi175010 ай бұрын
As 5 is the 10% of 50, then 8 can only be a percentage between 10 and 20. Sixteen is the only option on the table.
@4America202410 ай бұрын
If a bank gives 5.04% interest on deposit, is it lower or greater than .9%? Isnt 5.04% written as .00504 and .9% written as .009%? Please help, someone…Thank you…
@richardl675110 ай бұрын
It's 0.0504. You added a zero.
@brianschuetz261410 ай бұрын
@@richardl6751 What he said. When you moved the decimal point on the 0.9%, you move it two places. When you moved the decimal point on the 5.04%, you moved it three places. From 5.04 to 0.504 is one place. From 0.504 to 0.0504 is one place.
@quakers2009 ай бұрын
These questions have always troubled me . Instead of 50% substitute 1% so the answer is 800%. Or eight percent of eight percent is 100%. Though correct it seems like the person must have stated the question poory.
@stevenleach95225 ай бұрын
(8x100)=800, (800÷50)=16, ans.= 16%
@tijolinixpertin10 ай бұрын
My thought process was like: "8 is 8% of 100, and 50 is half of 100, hence 8 in 50 has to be double the % of 8 in 100"
@thinkaboutit..ministries10 ай бұрын
I like how you think
@larrydickenson892210 ай бұрын
One easy way of doing it, especially if your base number is 20, 25, 50, or 200. Piece of cake if your base is 100. Otherwise, just divide and change the decimal to percent by multiplying by 100.
@glengreen36210 ай бұрын
Your math problem as worded in the caption started a heated discussion between my brother and I, as asking "8 is what percent of 50%" is not the same as the problem that you show in the video. That 50% could be of any possible numerical figure, so the correct answer wouldn't be 16, but an algebraic figure of a percentage of X/2, X being the unknown number. I really can't work algebra in my mind, but maybe the answer is X/16%, but probably not.
@billywhyte669310 ай бұрын
What percentage of infinity is 1?
@billywhyte669310 ай бұрын
Then 0 ...... ?
@billywhyte669310 ай бұрын
There is an answer...
@billywhyte669310 ай бұрын
Put it this way --- there is only one one. It can't be sub-divided, made smaller. In the same way 'infinity' can't be made greater (or can it?). One is next after zero. And either 'zero' is absolute - or one does not exist. Is one infinity????
@billywhyte669310 ай бұрын
Nay -- zero encompasses infinity. One zero, one infinity! There is an aspect to mathematical thinking not possible in this realm.
@brianschuetz261410 ай бұрын
Infinity isn't a number, it's a concept. No matter how large a number you select, there will always be a larger number that exists. You cannot calculate a percentage on a concept, only on a number.
@Vipre-10 ай бұрын
X% of 50 is the same as 50% of X, so if X% of 50 equals 8 then 50% of X also equals 8 making X equal to 16. Answer b)16%
@dark00z10 ай бұрын
(8*100)/50=80/5=16
@ekwe111110 ай бұрын
Divide 100 by 50 and multiply by 2
@dalekistner917010 ай бұрын
b-16
@johnorchard410 ай бұрын
"8 is what percent of 50% A SIMPLE Percent question that MANY will get WRONG!" This is the title of this video...yet the question in the video is "8 is what % of 50". John, if one of your students were to write the question so badly (as shown in the title) what mark would you give them?
@Frenetic7410 ай бұрын
WP of WN = N
@steveroads550810 ай бұрын
When ever you need to find the percent of a number. I was taught the 1 percent method. 8 is what percent of 50? 50 has an invisible decimal at the end. Divide that number by 100 to get 1 percent. .5 or move the decimal left two places. Now 8 times 5 is 40. Remember to move the decimal. I got .4 or 4 percent is my answer. There can be different ways to do this question I'm sure
@theresasmith110 ай бұрын
lol never thought I’d be doing a math test . Fun 🎉
@russelllomando846010 ай бұрын
got it 16 .16 x 50 = 8 thanks for an easy one,
@richardhole84294 ай бұрын
Percent means per one hundred. Double the 50 to get 100. So double the 8 to get 26%
@skipbrewer810110 ай бұрын
16 by doubling all
@panlomito10 ай бұрын
That was my fourth option but you already took the honor.
@lilianaprina599110 ай бұрын
There are many ways to solve each problem...
@StephenRayWesley10 ай бұрын
(x-3x+2)
@michaeljozwiak2510 ай бұрын
B). 16%.
@dookoonu274110 ай бұрын
Didn't know how to do the calculation so i know that 10 is 20% of 50 so 8 is closer and less than 10 so it has to be 16%, the closest answer to 20%
@JosephWood1941-iz6mi10 ай бұрын
8÷50 is the same as 16÷100. I only read the thumbnail picture and not the title. Confusing. But I think the answer is still the same.
@StephenRayWesley10 ай бұрын
(x-4x+4)
@DayanandPandey-ns5qc10 ай бұрын
b)16%
@eugenebeasley10949 ай бұрын
(b)16%
@steveroads550810 ай бұрын
Wrong it's 16 percent. Double both 50 and 8. So it now says 16 is what percent of 100. Or self explanatory it's 16 percent. I messed up the first time
@Hi-rw8vr10 ай бұрын
50x2=100 8x2=16 16%
@Eleuthero510 ай бұрын
The title of this video is incorrect. It should be "8 is what percent of 50" and NOT "50%".
@--christine10 ай бұрын
The answer is 16percent. 8over 50x 100 over 1
@nyneeveanya886110 ай бұрын
10 is 20% of 50 so 8 must be 16%. Some weird flash thinking for 50 is 2 times number.
@randallcastillo217910 ай бұрын
I choose a...4.
@manuelquitevis679410 ай бұрын
8/50X100=16% and it is b)
@tombowen15019 ай бұрын
8%… 50/100=.01x8=.08 or 8%
@nancycarlstrom289510 ай бұрын
B 16%
@davidjohnson924010 ай бұрын
B - 16%
@giannaleoci232810 ай бұрын
8=x•50/100 x=16 8=16%50
@SwissArmyDan9 ай бұрын
A.
@ameral-khatib412610 ай бұрын
As
@sdcashman4510 ай бұрын
%/100 = Is/Of. 16.
@Be-13610 ай бұрын
Maybe the correct answer is 16. 8 is 16 percent of 50 not 16% percent of 50
@todallard879110 ай бұрын
Just because we can do math does not mean we can click mouse buttons.
@Omely-bv6ch10 ай бұрын
8 divided by 50 equal 0,16 equal 16%. So simple
@d.lindsey558310 ай бұрын
16, 2x50=100, 2x8=16
@randallcastillo217910 ай бұрын
Divide...got ot...I multiplied
@corbettfaulkner439210 ай бұрын
B is the answer
@marcusswitzer874910 ай бұрын
Answer a) 4%
@brucepickess809710 ай бұрын
Your out by 4x100%😏
@vanderpoolfarmsl.l.c.998310 ай бұрын
Think back on the wonderful teachers you had in school. Yes, they were not equal, but I'm sure you have many that you appreciated. When they walked to the board, did they ever say, "Many will get wrong?" Of course they didn't! What teacher in their right mind would be so negative? ANSWER: a "Self Promoter". Good luck with your math!
@gaileverett10 ай бұрын
The KZbin algorithms encourage this I believe. Leading with "many will get this wrong" tempts people into competing with the crowd, thereby increasing the attractiveness of the video. Teachers aren't just trying to get attention.
@lindyloya28282 ай бұрын
16?
@poohbear.7610 ай бұрын
15 minutes to solve this.... 50 x 2 = 100 8 x 2 = 16
@6Untitled910 ай бұрын
8/50 * 100 = 16%
@tesskansas10 ай бұрын
16 out of 100. guess is b, 16 percent. less than 20 percent
@neos...10 ай бұрын
Nice I got it!
@stevenjohnson114310 ай бұрын
16 percent
@dpaper796210 ай бұрын
"is/of AKA IS over OF"
@donnmilay669610 ай бұрын
8÷ 50 = .16 x 100 = 16
@richardrowe153810 ай бұрын
B = 16%
@deborahcardinal3-6-910 ай бұрын
The answer is 16%
@tembakazimvunelo8838 ай бұрын
16% is the correct amswer
@evettecorrea44110 ай бұрын
4%
@timplumb2110 ай бұрын
This problem is so easy if you got 100 8 is 8% of 100 so if you got 50 which is half of 100 you would multiply 50 by 2 to get 100 so if you only have 50 you multiply the 8 by the 2 instead you get 16%