SAT - Averages - Difficult Problems

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  • เผยแพร่เมื่อ 12 ม.ค. 2025

ความคิดเห็น • 160

  • @MissSweetCandy14
    @MissSweetCandy14 12 ปีที่แล้ว +2

    For some people they are. If you find them easy then that is good for you.
    For example, I'm from Austria so english is not my first language. Sometimes I can't solve a problem simply because I don't understand the task. It really helps to watch a native speaker solve them.

  • @user-qg7lb1jx8b
    @user-qg7lb1jx8b 9 ปีที่แล้ว +73

    well.. we won't have enough time to do it the way you explained it in the first one.

    • @sorincalub7830
      @sorincalub7830 7 ปีที่แล้ว +3

      don't start with the outliers in problems like this always start with the middle

    • @maxineadams7989
      @maxineadams7989 7 ปีที่แล้ว

      sorin calub yeah don't do the largest or the smallest

    • @williecroley6998
      @williecroley6998 5 ปีที่แล้ว

      Princeton Review courses are designed to make the most of every minute spent studying, helping students study in a smarter and more impactful way : medium.com/@sz8222368/experience-with-princeton-review-sat-course-bd0e1c8e4ca3

  • @rooone6588
    @rooone6588 8 ปีที่แล้ว +36

    Wow holy shit man why does my school not offer how to prepare for this shit i have never experienced such a thing.

    • @SL-yn2gw
      @SL-yn2gw 8 ปีที่แล้ว

      Roberto Gutierrez your school is not responsible for your college preparation...

    • @rooone6588
      @rooone6588 8 ปีที่แล้ว

      ShuYang Lin The school gets its funding off of good student final exams scores. Therefore it is in there interest to encourage student to take these things and offer it to them. So yeah in some part yes they are kind of at least if they want to keep running the school

    • @neverforgettodofacepulls782
      @neverforgettodofacepulls782 5 ปีที่แล้ว

      @@SL-yn2gw You're partially right. Partially is not good enough though. If they actually want the student to grow and learn, they should AT THE VERY LEAST have resources for the students in preparation of succeeding on their standardised tests if not directly teaching the students.

  • @andrewking9767
    @andrewking9767 9 ปีที่แล้ว +39

    It is faster way to solve it 7*16=112 112-17=95 | 95-18=77 | 77-19=58 | 58-20=38 | 38-21=17 now you can't choose distinct integer greater than 16 so the most amount of these numbers are 17,18,19,20 and 21 5 numbers last 2 numbers aren't important

  • @zannythatguy
    @zannythatguy 11 ปีที่แล้ว

    i should have been started watching these videos- you've taught me better than all of the math teachers I've had since 9th grade and i've only watched three of your videos

  • @Study4APbrah
    @Study4APbrah 13 ปีที่แล้ว +3

    I took some practice test after watching your videos, and increased my score by 100 points. Thank you so much, meanwhile I'm still taking notes. Oh btw, Sam really has to study for his next test.

  • @dominicksetunge2605
    @dominicksetunge2605 6 ปีที่แล้ว +10

    I'm so screwed

  • @RadicalPrep
    @RadicalPrep  11 ปีที่แล้ว +1

    no you don't have all the time to work out the videos on test day, you are 100% correct, but I explain them slowly so everyone can understand, it's up to you to practice more so that when you ACTUALLY do the problems you have all the steps in your head and you can zip through them... imagine if I just zipped through the problems... would that be helpful?

  • @lavon7418
    @lavon7418 5 ปีที่แล้ว +2

    Lol this is like the PSAT March 2019 problem where the kid had to get a 99 on his next test to pass the class😂😂

  • @NopeUnintended
    @NopeUnintended 11 ปีที่แล้ว

    I know you posted that a year ago, but if you find C to be correct, you still have to try A and B to see if they are correct, which makes it more likely that you'll pick C even though it isn't the optimal answer.

  • @WateryIce54321
    @WateryIce54321 11 ปีที่แล้ว +1

    Haha, that's great, I said the exact same thing a minute into looking at the problem.
    SAT really pushes the critical thinking on basic math concepts. While ACT seems to go for application based on what you should have learned in highschool.

  • @yearcut
    @yearcut 10 ปีที่แล้ว +17

    These are difficult problems?

  • @212dom212
    @212dom212 12 ปีที่แล้ว

    You make this look easier than getting a tan.

  • @vizengwa
    @vizengwa 11 ปีที่แล้ว +7

    I'm confused on the first one...

  • @c4987
    @c4987 10 ปีที่แล้ว +30

    I wish the problems on sat math part are easy as this ......

    • @RadicalPrep
      @RadicalPrep  10 ปีที่แล้ว +16

      well some are... this is from an actual test :)

    • @mapledalemathking
      @mapledalemathking 7 ปีที่แล้ว

      RadicalPrep it's easier questions though

  • @angelbiersack304
    @angelbiersack304 10 ปีที่แล้ว +3

    Amazing teacher!

  • @lelouchlamperouge1855
    @lelouchlamperouge1855 11 ปีที่แล้ว

    Just to save time on the last problem, Start off by doing 84 x 5 = 420 right away, then do 80x4=320, and do 420-320=100, getting the answer of needing to receive an 100 on the next test to get an 84 average. Makes the problem a lot faster

  • @MegaTamer111
    @MegaTamer111 8 ปีที่แล้ว +1

    In the UK we don't even get multiple choice questions. Secondly, these problems are so easy.

  • @multipoly210
    @multipoly210 13 ปีที่แล้ว

    Thanks a bunch for these extremely helpful tutorials. I haven't been able to find any other ones as concise or in-depth as this one. 2400, here I come!
    Praise Satan,
    Geraldé L'Heuruex

  • @Misteloct
    @Misteloct 12 ปีที่แล้ว

    Just because C is inconsistent doesn't necessarily mean that A or B would be inconsistent (although in this case, it happens to be true). Be careful about the assumptions you make!

  • @TheDmoney1114
    @TheDmoney1114 11 ปีที่แล้ว

    These videos are great thanks for the help! But do we really have all this time on the SAT to work out problems? I feel like it might almost take to long.. Im taking the SAT tomorrow so this really is a lot of help compared to just taking online practice tests that dont give you much of an explanation afterwards

  • @ginnyweasley3515
    @ginnyweasley3515 9 ปีที่แล้ว +2

    why did you put the "y" at the 5#'s ? You only wrote "x" in the 6#'s and no "y".

  • @heli0s588
    @heli0s588 5 ปีที่แล้ว +1

    I’m gonna miss Radical Prep after I finish my SAT next week

  • @gustavofinkler1229
    @gustavofinkler1229 8 ปีที่แล้ว

    I found it really easy. It's like ENEM, the SAT here in Brazil

  • @2bjjones
    @2bjjones 11 ปีที่แล้ว

    Well, Waterylce54321 kind of nailed it on the dot. The SAT, which I've never taken before pushes critical thinking on math while the ACT goes right into math applications you would normally see in a high school class.

  • @ankurtripathi9772
    @ankurtripathi9772 7 ปีที่แล้ว

    in the first q just add up extra values over 16 in each case. but that exceeds 16. so only 1 number cannot digest all of it. so 2 numbers r required.....hence 5

  • @kcampbell9248
    @kcampbell9248 12 ปีที่แล้ว

    omg you are heaven sent. thank you SO much!

  • @bishramsharma4209
    @bishramsharma4209 8 ปีที่แล้ว +1

    are the SAT tests the same worldwide because i find it too easy...i have no idea about SAT but i am thinking of applying for scholarships for USA is this the same test that we should take??

  • @ItsDarkRightNow
    @ItsDarkRightNow 12 ปีที่แล้ว

    Do you have any tips to do these problems faster?

  • @MoonspiritX
    @MoonspiritX 10 ปีที่แล้ว

    I WOULD have asked where you got y from, but the total numbers you had to have on top needed to add up to 7 and we didn't know what the other numbers were. Correct me if I am wrong.

  • @1212sk84life
    @1212sk84life 12 ปีที่แล้ว

    or to get really technical you could do choices (B) and (D) for instance if the choice is higher than (B) then its (A) sorry its kinda hard to explain but i hope you get it :P

  • @tiffanyphan1907
    @tiffanyphan1907 9 ปีที่แล้ว +2

    For the first one wouldn't 4 work as well? Since 17+18+19+20+x+y+n=74 and 112-74=38 and 12+12+14 which are numbers lower than 16 would be equal to 38. 17+18+19+20+12+12+14=112/7=16. Please explain why the answer is just 5!

    • @kazuyamishima2786
      @kazuyamishima2786 9 ปีที่แล้ว +12

      Because it says what is the 'most' amount of these numbers that can be greater than 16? 5 is the most

    • @prasispoudel7353
      @prasispoudel7353 7 ปีที่แล้ว

      Tiffany Phan read the question properly it says 7 dinstint positive integers

  • @BDpartnercoJM
    @BDpartnercoJM 11 ปีที่แล้ว

    Where do you work? I plan on majoring in Computer Science as well.

  • @miacandy95
    @miacandy95 13 ปีที่แล้ว

    OMG, YOU ARE SO HELPFUL! THANKYOU SOOO MUCH!

  • @peplay501
    @peplay501 11 ปีที่แล้ว

    OMG. Thank youuu. Lol really, thanks so much for your easy explanations!

  • @wkingcobra
    @wkingcobra 11 ปีที่แล้ว

    The problem is we don't have that much time on a test to answer everything out. In essence the methods are good but in retrospect because it take too long this is irrelevant

  • @kanono1793
    @kanono1793 9 ปีที่แล้ว

    thanks for the formula hints :) getting there

  • @billy.7113
    @billy.7113 8 ปีที่แล้ว +7

    5th grade math in Singapore, draw a few bars and done.

    • @formerunsecretarygeneralba9536
      @formerunsecretarygeneralba9536 7 ปีที่แล้ว

      Bill Y. And yet most Singaporeans are better at math than Americans you must tell me your secret.

    • @benttonwisard1313
      @benttonwisard1313 6 ปีที่แล้ว

      Lmk when Singapore isn’t riddled with crime

    • @at9328
      @at9328 6 ปีที่แล้ว

      Pretty smart kid moved from singapore to where i live in america, this kid is pretty smart and he took geometry a year before I did. For some reason, though, he decided to redo geometry here in america in 9th grade (most people take it in 10th).

  • @sprydude24
    @sprydude24 11 ปีที่แล้ว

    Why did you add x+y or choice 5

  • @amanarham3538
    @amanarham3538 7 ปีที่แล้ว

    Why on 6#’s is there x and not y just like 5#’s

  • @tiffanyslaton15
    @tiffanyslaton15 11 ปีที่แล้ว

    Why did you change it from "x" to "X +Y" instead of leaving it as just x?

  • @mauritzbaggerman2118
    @mauritzbaggerman2118 8 ปีที่แล้ว

    aren't these easy in comparison to the other problems?

  • @Hersheybubbles1
    @Hersheybubbles1 13 ปีที่แล้ว

    i didnt understand how the right answer was 5 if y+x=17 when the avg is 16. with 5 doesnt that mean that the avg is 17??

  • @scraper1000
    @scraper1000 14 ปีที่แล้ว

    I don't get the problem. You said that 7 numbers greater than 16 doesn't make sense, then how does 6 numbers greater than 50?

  • @Smileesamantha
    @Smileesamantha 10 ปีที่แล้ว +1

    why did you use 17 18 19 etc. why can't you use all of the same number such as all 17

    • @peteytkeepitg
      @peteytkeepitg 10 ปีที่แล้ว +5

      the word distinct

    • @vlKenzo
      @vlKenzo 9 ปีที่แล้ว +4

      Do you know what distinct means?

  • @sugarhon3yic3t3a
    @sugarhon3yic3t3a 11 ปีที่แล้ว

    Although your teaching methods are great and I understand how you get the answer, I don't have 5 minutes for 1 question on my test

  • @private1456higa
    @private1456higa 11 ปีที่แล้ว

    What do you mean "worse" ?

  • @Zacurafire
    @Zacurafire 13 ปีที่แล้ว

    @scraper1000 that would be because at least one would be below 16. you can't have an average that is lower than all the numbers needed to form it. anyway it was the wrong choice

  • @andyguo3819
    @andyguo3819 8 ปีที่แล้ว

    The way i did #1 is 7 is impossible 6: 1+17+18+19+20+21+22=118/7=16.85 (so 6 cant also work because using the smallest number (1) the average is still over 16 with 6 number greater than 16). So 5: 17+18+19+20+21=95. Then add 3 because other 2 numbers could be 1 and 2 you get 98/7= 14 (less than 16). Then 112 (16 *7) - 95( 17+18+19+20+21=95) you get 17. That means 2 number that equals 17 is less than 16 so 9 and 8. 8+9+17+18+19+20+21=112/7=16. You didnt need to figure out the last step but i did it just to show you that 9 and 8 works. Now you know the answer is 5

  • @Nagimonoxide
    @Nagimonoxide 13 ปีที่แล้ว

    If I have the average of 10 numbers, and the average is 5. The numbers would have to be 1, 2, 3, 4, 5, 6, 7, 8 , 9, and 10. That's =to 85. And you said ML = sum. 10x5 = 50 not 85.

  • @masanobunishimura9040
    @masanobunishimura9040 5 ปีที่แล้ว

    Wait...on 1st question why do you started from #17?

    • @usmanifaraz123
      @usmanifaraz123 5 ปีที่แล้ว

      As it says number greater than 16

  • @vlKenzo
    @vlKenzo 9 ปีที่แล้ว +1

    Easier equation for #3. 84(5)-80(4)=100.

  • @AlbanK-mu9bj
    @AlbanK-mu9bj 11 ปีที่แล้ว

    Someone help, If the average of the 4 numbers a, b , c and t is 40 and the average of the 3 numbers a, b and c is 20 what is the value of t?

  • @2bjjones
    @2bjjones 11 ปีที่แล้ว

    Gee, it seems the SAT is dreadfully worse than the ACT.

  • @astriverofstrengthandknowledge
    @astriverofstrengthandknowledge 7 ปีที่แล้ว +3

    There's no way you'll be able to do the first example in under a minute

    • @yarubik
      @yarubik 7 ปีที่แล้ว +2

      African Prince Okoh to be honest I would stop after finishing the work for answer choice b (6) because it's pretty obvious that the maximum will be 5

    • @lavon7418
      @lavon7418 5 ปีที่แล้ว +1

      Instead of start from the top, maybe starting at the middle helps more. If your answer is too low, try the larger answer choices, and vice versa for the high answers

    • @lavon7418
      @lavon7418 5 ปีที่แล้ว

      Higher answers being those that give negative answers for x

  • @YadaYadaAchievements
    @YadaYadaAchievements 12 ปีที่แล้ว

    Wow, great tip!

  • @gr8miller
    @gr8miller 12 ปีที่แล้ว

    you are the best!!!!!!!!!!!!!!!

  • @Kyzuuh
    @Kyzuuh 11 ปีที่แล้ว

    Your symbol is for associated press not advanced placement... And someone who recently graduated from a university wouldn't label themselves as an "ap student".

  • @Pineapplex1990x
    @Pineapplex1990x 11 ปีที่แล้ว

    Lol, i hate maths so much....! Thank you so much for these vids though they are a big help :)

  • @dantheman4891
    @dantheman4891 9 ปีที่แล้ว +2

    Is this really on the sat? I found these questions to be really easy, and I'm in 8th grade.

    • @brebre23461
      @brebre23461 9 ปีที่แล้ว

      Yeah you will be surprised what's on the SAT. The SAT mix up the easy and hard problems on the test.

    • @Trenton2018
      @Trenton2018 8 ปีที่แล้ว +1

      Lol, I thought these where difficult, and I'm in 10th grade :/. Guess I'm dumb, or your crazy smart

    • @kattievids
      @kattievids 7 ปีที่แล้ว

      Haahahha

    • @ThangHoang-sm4ty
      @ThangHoang-sm4ty 6 ปีที่แล้ว

      Trenton2018 no my friend asians like us found this to be insanely easy.

  • @VAT2EAT
    @VAT2EAT 11 ปีที่แล้ว

    Guys...I didn't understand the solution of the first one

  • @tracyantonella7997
    @tracyantonella7997 10 ปีที่แล้ว

    Thank you so much!

  • @fruityloops3395
    @fruityloops3395 11 ปีที่แล้ว

    for the first question, why cant the answer be D)?

    • @lsofia1871
      @lsofia1871 4 ปีที่แล้ว

      it's asking for the greatest amount; while D works, it's not the biggest amount that works

  • @indifferent901
    @indifferent901 8 ปีที่แล้ว

    Dude the examples were dirt easy.

  • @Sweet_Sundae_Gamez
    @Sweet_Sundae_Gamez 8 ปีที่แล้ว

    thank you.... chu made my life easier T^T

  • @englishlife5838
    @englishlife5838 4 ปีที่แล้ว

    Those ain’t difficult, those requires time only👍🏻

  • @Nagimonoxide
    @Nagimonoxide 13 ปีที่แล้ว

    I meant 55 not 85.

  • @jeanshawn
    @jeanshawn 11 ปีที่แล้ว

    why didnt you write 17, 17.5, 18, 18.5 etc. or use any decimals for this part. why arent decimals acceptable

    • @AayamS
      @AayamS 11 ปีที่แล้ว

      they are, its just easier to work with whole numbers

    • @cscubed
      @cscubed 11 ปีที่แล้ว +12

      integers can't have decimals

    • @AayamS
      @AayamS 11 ปีที่แล้ว

      ***** i thought we were talking about mathmatical possibility , i guess what you say makes sense for the question

  • @dandouchi26
    @dandouchi26 13 ปีที่แล้ว

    u mean consecutive number I think

  • @CherryDiamond7
    @CherryDiamond7 13 ปีที่แล้ว

    god knows wat kinda stupid answers i would have gotten without ur help *__*

  • @bobbybettencourt8755
    @bobbybettencourt8755 8 ปีที่แล้ว +2

    I had the first problem figured out in about 30 seconds using logic 2 minutes is too long for one problem on the sat never mind 4 I had to stop watching I've found with other kids in high school the difficult part of a hard problem is just how long it takes to find the correct answer most everything on the test you've been taught how to figure out just not usually fast enough to get an 800

  • @myagreen7086
    @myagreen7086 12 ปีที่แล้ว

    Thank youuuu sooo much!

  • @dustymug7290
    @dustymug7290 11 ปีที่แล้ว

    You sir are awesome.

  • @elenabai2130
    @elenabai2130 9 ปีที่แล้ว

    A bunch of these are just like math counts problems!

  • @OutstandingVoice
    @OutstandingVoice 10 ปีที่แล้ว

    Mucho gracias!

  • @renansas
    @renansas 12 ปีที่แล้ว

    You may not believe it, but most Brazilian SATs are way harder than this

    • @lemontardd
      @lemontardd 5 ปีที่แล้ว

      brazil doesnt even have the sat lol

  • @DannyLovah
    @DannyLovah 13 ปีที่แล้ว

    wow. the SAT makes sense now O_O

  • @オドリ
    @オドリ 6 ปีที่แล้ว +1

    Bruh we don’t have time for this

  • @akabestful
    @akabestful 12 ปีที่แล้ว

    why cant i think like you

  • @saramohd4669
    @saramohd4669 5 ปีที่แล้ว

    are those suppose to be hard!!!

  • @uwu.cynostic
    @uwu.cynostic 7 ปีที่แล้ว

    "Difficult" problems...but nice video!

  • @rulely
    @rulely 12 ปีที่แล้ว

    first was hard. rest was easy :3

  • @agathelaisne1563
    @agathelaisne1563 9 ปีที่แล้ว +1

    but it could be 17, 6 times no ?

    • @ReaganTechVideos
      @ReaganTechVideos 9 ปีที่แล้ว

      +Agathe Laisne The problem said that the positive integers were distinct, meaning that they could not be repeated :)

  • @LeoPlaysCODM
    @LeoPlaysCODM 8 ปีที่แล้ว

    I take COOPs

  • @kingdavey90
    @kingdavey90 13 ปีที่แล้ว

    darn I thought the answer was FOR

  • @Blizzhobbs
    @Blizzhobbs 12 ปีที่แล้ว

    so in the last problem, by setting the equations equal to eachother and symplifying, you will get y=y+2.....yeeaahhhh....

  • @erenyeager8417
    @erenyeager8417 7 ปีที่แล้ว +1

    its so hard

  • @K1370
    @K1370 13 ปีที่แล้ว

    ty ty

  • @27Oscardlr
    @27Oscardlr 13 ปีที่แล้ว

    @IloveMIT8923 AGREED!

  • @adit1001able
    @adit1001able 12 ปีที่แล้ว

    its funny, how you make 8s...with two circles and not at one go.

  • @Pineapplex1990x
    @Pineapplex1990x 11 ปีที่แล้ว

    it really is.....

  • @AlbanK-mu9bj
    @AlbanK-mu9bj 11 ปีที่แล้ว

    its true

  • @dff2565
    @dff2565 9 ปีที่แล้ว

    wtf!!!
    you all just see IIT JEE easy problems.....

  • @Mihirskates
    @Mihirskates 11 ปีที่แล้ว

    not the highest

  • @drepittman9516
    @drepittman9516 9 ปีที่แล้ว

    Really guys I can't under stand I'm just going to say I get it

  • @Spielzeit85
    @Spielzeit85 12 ปีที่แล้ว

    Well I hope you know you didn't get that job with SAT math lol
    And i only know how many kids failed college Calculus because I took it myself, and it was a breeze.

  • @btil1
    @btil1 12 ปีที่แล้ว

    please make sure that you are using only official college board material. when you make up your own problems, you are doing a disservice to students.

  • @pamveeee
    @pamveeee 11 ปีที่แล้ว

    lucky lol Im terrible at math!

  • @Spielzeit85
    @Spielzeit85 12 ปีที่แล้ว

    Jesus, SAT math is a freakin' joke. No wonder I've seen so many kids fail Calc-1 and 2 in college.

  • @RadicalPrep
    @RadicalPrep  11 ปีที่แล้ว +16

    no you don't have all the time to work out the videos on test day, you are 100% correct, but I explain them slowly so everyone can understand, it's up to you to practice more so that when you ACTUALLY do the problems you have all the steps in your head and you can zip through them... imagine if I just zipped through the problems... would that be helpful?