Aptitude Made Easy Problems on Calendar full series, Learn maths
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- Опубликовано: 16 апр 2020
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Aptitude Made Easy is an initiative by freshersworld.com.It consists of series of videos on different skill enhancement topics .By these we want all freshers and the candidates who are attending for the next competitive exams to be interview ready.All the best for all aspirants.
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The method of substracting 1 from leap year dates is giving irregular answers.
It works on 29th February 2012 as shown in the video, I tried to check if it worked on 28th February 2012 and rest assured it was working.
But on trying the method on other leap years dates:
- 06 April 1896 - Remainder was 1 i.e. monday
- 05 October 2016 - Remainder was 3 i.e. wednesday
- 14 August 2004 - Remainder was 6 i.e. saturday
Upon checking the correct days for the mentioned dates, the answers were all correct without the need to apply the (-1) rule. Why the discrepancy?
Edit: I've figured out the pattern. Essentially, all dates in a leap year before the leap date are subject to the (-1) rule but not the ones that come after it. In simple terms in a leap year, we need to apply the rule on January & February but needn't apply the same on the rest of the year.
Thank you for the tutorial. This has helped me immensely.
Thank you. You cleard my doubt
yeah bro you r correct
thanks for clarification
thanks sir
Thanks a lot
Brother your name will go down in history
This teacher deserve a gold 🥇 medal
yeah
but why do 724people dislike it
@@neilnishanth Ignore them! They aren't worthy guys!
is 2016 not a leap year y mam not subtracted 1 to answer anyone please answer?
Same doubt@@Ramsharan647
best teacher got in 2022....! thank you..
I usually don't comment, but u explained it very good, now I can solve all aptitude question regarding years and dates
Thank you
I Answered 3 answers out of 3 questions in recruitment test after watching this video. Thank you to the freshersworld team!
Which company asks this other than gov jobs 🙄??
Which recruitment
@@ahmadsabeel6576 software companies
@@ahmadsabeel6576 inki problems hi hain yeh bande reply nahi dete hain .
Attitude aa jata hain inme
@@sachinupreti7159 ya comments itne h ki haar kisi ka reply dena possible nhi
1.) I simply pre-memorized all 366 possible dates as a value from -3 to 3.
2.) Then I just add that to one of the 4 possible century codes of 2,0,-2, or 3 (7 possible century codes for Julian from -3 to 3) and finally,
3.) Add that to a pre-memorized value for each of the 100 years from 00 to 99.
For example, my birthdate of March 19, 1982 goes:
-2+3-3=-2 so Friday! Or shortcutting, I just cancel the 3 and -3, and -2 is Friday! The fastest way to do this is to pre-memorize all 100 year values from 00 to 99. Then I just add that to the century code and finally add that to a pre-memorized value for each of the possible 366 dates (these 3 values can be added together in any order you like). For example, June 15, 2012 would simply be:
2+2+1=5, so Friday!
June 15 always has a value of 2 (pre-memorized)
2000's has a century code of 2
and,
year 12 always has a value of 1 (pre-memorized)
2+2+1=5, Friday!
Anytime leapyear happens just subtract one from the answer for January or February only, all other months stay the same!
I calculate any day of the week using my method in less than a second, almost instantly to 2 seconds tops if I'm thinking a bit. I do both the Julian and Gregorian calendars in both AD and BC infinitely into the past or the future.I do other cool tricks that aren't heard of very often, for example since this calendar math can be viewed as just a simple addition problem, we can also solve for a missing value using subtraction! For example, if we already know the day of the week to be Friday for example, we can solve for a possible month/months or even a date from 1 to 31 or even a possible year or century.
Example: Which month or months did Friday the 13th fall on in 1899?
1899 was a Tuesday year (-2+4=2) or (5-3=2). So, Tuesday was the 10th since 3 days later was Friday the 13th.
So, 2+13+x=5 (Friday)
x=4 because 15+(-10)=5
-10+14=4
Mod7 arithmetic
Only January and October had a month code of 4 😁. So it only happened twice that year, in January and in October. Also we can say more intuitively that since 1899 was a Tuesday year, and Friday being 3 days later, which month/months had the Doomsday of 3,10,17,24,31? and obviously that is only January and October.
If the question changed to what were all of the Fridays in January and October for example in 1899?
We can say "the 6th, 13th, 20th, and 27th"
If someone were to instead ask for example on Friday the 13th from 1883 to 1900 what year/years did that happen?
We can say "only in 1893 and 1899"
In this situation we just needed to find the missing year code of (4 or -3) and only 93 and 99 have that year code in that date range. Likewise, we could have instead solved for the century 😉 also if already given a year.
Madam iam in a Telugumedium student but chala Baga understand avutundi thank u soo much
It's excellent teaching mam.. Tq mam for giving this video... Most useful to me.. 😊😊
Mam your way of teaching makes me confidence in calendar problem s👌
Thank you mam for giving clear explanation
Super explanation mam. today I have reasoning exam I saw you video now . I could solve all problems now
Best video for Calendar Questions. 👏
Couldn't have found a better video. Kudos!!
Beauty with brains! Thank you for the video...Very Helpful!
you are the best teacher ever, so grateful to you ma'am
is 2016 not a leap year y mam not subtracted 1 to answer anyone please answer?
Amazing Mam..Math/Reasoning is nothing but Everything 🎊🎊
Thanks a lotttttttt for this video...❤️❤️❤️❤️❤️❤️❤️❤️
For several days I was trying to solve this problem but I couldn't...
Now I have understood the concept..
Once again thanks a lot for your effort...
What a great day, I learned so many from your class Thank you sister.
Thank uh so much for saving me❤️literally helpful for my final exams❤️
Mam thank you u made calendar problem easy god bless you u made me preparing for upsc
She has explained it really well!
is 2016 not a leap year y mam not subtracted 1 to answer anyone please answer?
The way u have explained was really elucidate. Each concept is nicely quoted so that viewer could easily understood 😊😊
Luv
Really
@@kumbabaji8188 Nahi degi bhai soja
*The way you have explained was really elucidating(informative). Each concept is nicely quoted so that viewer can easily understand.
@@seemaladdha9771 caught me :'D each viewer it is
Very Useful with Interesting, Many Thanks to you Teacher..!
wohh top quality content maam very nice and smooth explanation of suff which is not so easy to grab ! .Thanks !!Great work
So Helpful Thank You so much. I am in 5th and in this quarantine days i wanted to learn something new so i took the chapter, Calendar. It is also in our syllabus. THX. I am so prepared.
I also 👍
Hi 💜🅐🅡🅜🅨⁷⟬⟭💜😁
@@jeniemuks hi
@@priyanka6710 How to identify a leap year
Thank You Maam ,I have test tomorrow and your lecture really helped me .....
This video is a life saviour! 🤗
Suberb concepts
Superb explanation🙏
Thank u so much
You're most welcome
THANK YOU SO SOO MUCH MA'AM!!! YOU HELPED A LOT OF STUDENTS INCLUDING ME WITH THIS TOPIC😭
amazing tricks you gave. earlier i was taking a lotta time for these questions. now they can be done in just a few seconds. :)
is 2016 not a leap year y mam not subtracted 1 to answer anyone please answer?
Your teaching is ' Nothing but awesome '
is 2016 not a leap year y mam not subtracted 1 to answer anyone please answer?
wow you really know how to teach.Good job.Keep it up.
I am very happy today I learnt this calendar trick so easily beautiful explanation it's was very easy to understand and practice thank you so much Madam 😊 please share other mathematics videos it will really helpful
is 2016 not a leap year y mam not subtracted 1 to answer anyone please answer?
6.30@2016 didn't consider as Leap year but 8.06 @2012 is considered as Leap year .... getting Confused....
Same here bro 🧐
Nothing to confussion there, in leap year extra day comes in February. In the question if mention January or February month we have to reduce one day because extra day not yet come. In the question if ask other than two months extra day will automatically added and we need not to minus one day.
Worth watching this video very very helpful thank you ma'am🙏
Tq mam.......ur explanation will be superb.....i get Mark's simply by this way ✨
I got it.
But our respected Madam forgot to mention one important point, which might be the cause of some mistakes popping up when solving the case of March, 12, 2016.
"In case of leap years, only subtract 1 from the last remainder for January and February. For the rest of the month, ie, March to December, the last remainder determines the day of the month"
Thank you.
Thank you. I had the same doubt and searching in the comment box whether i could get the right answer for my question 😅And i saw your comment. My doubt was cleared. 👍✌
😘😘😘
Thanx dude you really saved my life
hey..however even that is also coming wrong..my remainder for your date was 1..if i take the remainder itself,the day is monday..and if i subtract the remainder by 1 (1-1=0) which is a sunday..both the days neither match the actual day of 12th march 2016 nor the day of the month(which is a tuesday)..can u help me pls😐
@@swathiganesh6400 dimag ghutne main hoga ta 12 March 2016 Tuesday hoga tera samjha 2016 ka jaa calendar cross check kar ye saturday aata hai.
Your videos are "nothing but" amazing. 😉👍
Nice 👍
is 2016 not a leap year y mam not subtracted 1 to answer anyone please answer?
@@Ramsharan647Yes. 2016 is a leap year. We need to subtract 1 only for the months of January, and February in a leap year.
i dont get it@@dhulipudibhanuprasad-dbp7915
very best teaching and explaining skill
You are nothing but awesome... Thanks!!!
Thank you so much mam for making us understand the concepts in such a good way...I think every concept of my related to Callender is clear now...thank u❤❤
I think u can do better if u solve ur own style
Hii
Medam baghane cheputhandhaa
is 2016 not a leap year y mam not subtracted 1 to answer anyone please answer?
Thank you. I'd finished my C program with this algorithm.
How bro please let me tell
Good simplicity and energetic class
Ma'am thank you, you have cleared all my doubts on calendar.
If the year is leap year we have to subtract 1 from last answer ex the 2016 is leap year we have to subtract 3-1=2 the day is Tuesday will u pls help me to solve this dought
How to identify a leap year
simple way to understand every one keep making vedios
current affairs plz
Thanks for giving Valuable knowledge
U r awesome maaaam.......... Pls do upload such incredible videos more and more for the well being of aspirants,,,, out there.. Well done maamm, , my confusion regarding calendar got cleared,,, Satisfied with your teaching
is 2016 not a leap year y mam not subtracted 1 to answer anyone please answer?
I thought it is very different but after watching your video I can do it very easily.... And I am student of NMMS this video help me alot mam... Thank you very much mam ☺️☺️👍🏼
is 2016 not a leap year y mam not subtracted 1 to answer anyone please answer?
Super teaching exlent Madam ❤😊
You are nothing but fabulous ma'am
Thank you sister for helping with this brilliant lecture.
Glad it was helpful!
Only Concept, No Nonsense.... thank you mam
Super explaination and Osm teaching Levels madam 😊
Your way of teaching nothing but awesome👌
is 2016 not a leap year y mam not subtracted 1 to answer anyone please answer?
Yesterday u disappointed me not uploading a full length aptitude vedio....plz one humble request plz create a separate a vedios on playlist and it will be useful
You are nothing but a good teacher 😅🌼
is 2016 not a leap year y mam not subtracted 1 to answer anyone please answer?
Ur teaching skill are amazing
Mam your English accent is amazing 🤩
Last part was difficult to understand because the Bindi was missing🥲
I am surprised 😮 with your flow of English.
Your teaching Excellent mam 👍
easiest to understand out of all calendar videos on youtube . Thanks to freshersworld team
is 2016 not a leap year y mam not subtracted 1 to answer anyone please answer?
Simple, easy to understand and its very interesting to solve problem thank you...
You are welcome
Thanks you mam I am upsc aspirants the method that you're giving us is literally amazing 🙂
Glad to hear that
If the year is leap year we have to subtract 1 from last answer ex the 2016 is leap year we have to subtract 3-1=2 the day is Tuesday will u pls help me to solve this dought
@@MrDanielVlogs "In case of leap years, only subtract 1 from the last remainder for January and February. For the rest of the month, ie, March to December, the last remainder determines the day of the month"
@@susmithkumar7142Thanks buddy💯
all concepts in very less time. 🙌🏼
Your teaching method is brilliant 👏👏👏
I saw a video of length close to 2 hours where he gave lecture till part 2...u completed all the parts in 22 mins...wow👏👏.....keep doing such videos 💐
is 2016 not a leap year y mam not subtracted 1 to answer anyone please answer?
Really good ma'am... but if u explain the introduction concept some more clearly... it's should be much better... Really thank u
Morning 12 to 1 i saw this video and 2 questions were there in afternoon, thank you soooooo much madam
Thank you so much for this video! This helped a lot!!! 💯💯
We have to subtract one form only first two months (jan&feb) while calculating a day of leap year.
yes ... that's what maam didn't told .
thanks for information
Your explanation is nothing but Amazing 😉😂
Keep it up mam 👍
😂😂was searching for this comment only!
is 2016 not a leap year y mam not subtracted 1 to answer anyone please answer?
Mam u have explained the concept very well...
Thank you mam helping me such great thing for freshers...to know about tricks.. 👍
Mam a small doubt. In the first part of the video , the second sum (with 5th october 2016) is a leap year. But why mam we didn't subtract 1?
aise he
In 2016....there was an error....31÷7=4...then 4-1(coz leap year)=3 that is Wednesday
@@kritichopra2927 thank you ji
@@kritichopra2927 4 is quotient.. but we should consider remainder only. Remainder is 3.. in case of leap years , subtract 1 from the remainder for only Jan and feb... Consider remainder for rest of the months
"In case of leap years, only subtract 1 from the last remainder for January and February. For the rest of the month, ie, March to December, the last remainder determines the day of the month"
For the 2016 example shouldn't we consider that is it a leap year and subtract 1 from the remainder at the last step to determine the day? 2004, 2008,2012,2016,2020, 2024 ect can be divided by 4 so we can tell that they are leap years.
We should subtract only if we have feb and jan
i was thinking the same
@@vamshigoud3273 Sure ?
Yes of course ..I'm have the same doubt
"In case of leap years, only subtract 1 from the last remainder for January and February. For the rest of the month, ie, March to December, the last remainder determines the day of the month"
thanks madam, for clearing different types of problems
Maam your maths explanation is good but your english speaking is marvelous which makes us easy to understand
In the 2nd sum 2016 is also a leap year.. didn't understand why we didn't do "-1" there
-1 is only done for a leap year if it falls before 29 feb
2nd question falls on October,2016 that's why no subtraction needed
@@drakehopkins5931 bro if it's before 29th February we have to subtract 1 right ???
@@zeshundiaries5699 and a leap year, yes
otherwise there is also another trick i.e. for a leap year the monthly codes of january and february will be 6 and 2 respectively then you dont have to subtract
Only subtract by 1 in case the year is a leap year and the months are either January or February.
Thank you ma'am ...it helped me a lot to be thorough with this concept
Glad to hear that
Easy trick to follow and remember.thankyou😊mam
Thanks for your explanation mam.its awsome..... 🔥
I thought calander questions are very difficult ...after i watched ur video it's really simple to do....thank you so much 😄
#😘The way your theaching is, as smart as you mam❤️🙏
Good video ,but less variety of questions are there , it wil become difficult for us to follow single video because we can't made everything from that like variety of questions and concepts.
But whatever taught. Just LIT 🔥
You are a best teacher . Thank u
Beauty with brain 🔥
Very true
How can we solve 15 may 2003 with this trick
Padhle
Can u plz explain for the years 2016 and 2012 ...?? Where both are leap years and u hv done them in different ways..
yes i also have same doubt but then i checked 5th oct 2016 and its wednesday so i am not getting what to do about that
Dimaag main ghu bhara hogana isiliye ye sawal pucha tune
Tere upar waale comment dekh pata chal jayega
Subtract 1 for only 29th Feb. Do the existent method(not with "-1") in all the remaining instances. That's it.
In 2016....there was an error....31÷7=4...then 4-1(coz leap year)=3 that is Wednesday
Just nailed -calender problems😍
I loved you mam...
Your teaching. 😍🥰
If she's my teacher i ain't bunkin a single class😜😜
I am also🤗
Tharki😂😂😂😂
🖐️🖐️
Lol
Haa
Thank you so much mam. Got a doubt regarding the leap year. 2016 is also a leap year and there you werent subtracting 1 from the remainder you got. Is the leap year concept only applicable to the month of feb ?
In leap year we only subtract 1 for the dates before 1st march
@@shubh4anshu109 thank u so much for telling i was mired in one question but after i read comment section and found out that others are even facing the same problem i am facing but then there you were replying to the doubts which others had. it was really helpful. keep helping :)
@@RiyaSharma-fg6wc thank you so much 😇 your comment will definitely made my day.
@facts of india ❌
@@shubh4anshu109 thank you
Thank you, I think we can shall may ( or any suitable helping verb ) understand how weeks are designed and week of six eight nine till 21 days can shall may ( or any suitable helping verb ) be formed..
Thank you madam, for revising me. ❤️
Guys she missed to tell something imp , in a leap year if it's before 29 th Feb minus 1 the remainder and if it's after 29 Feb don't minus because the minus 1 & the extra day 29 Feb gets cancelled so you don't need to minus 1 after 29 Feb in a leap year and for 29th Feb day minus 1 for reminder 👍🏻
First of all thanks! and are you sure bro??
In the year 2001 are present,the last two digit is 01 then how to divide by 4 can you explain mam?
0 will be the quotient in this case
@@vijendrameena6861 tq
Thank you very much ma'am it is really very helpful.
The best video on this topic I have found👌Kudos
2016 is also leap year ,u did not substracted with 1 why, and u substracted 1 for 2012
same doubt.
In leap year before Feb 29 date there will be 1 day deducted ex- 2feb 2012
Apply -1 only for the months jan and feb in leap year.. Rest of the months u can follow the default procedure
In calendar part 3
2006 is a leap year right then we should substrate 2 from the wed then it will be Monday
5th oct 2016 is a leap yr but u didn't subtract a day why......?
And did for other leap yr
same question...
It's the concept of date falling before February or the date is falling after February....if it's on or before February then we need to subtract 1...if it's after February ,even though it is a leap year ,there is no need of subtracting 1
@@arka9710 if the date is on 1st jan 2016 we want to subtract 1 or not
@@gokulakrishnan1626 yes.subtract 1
Your teaching Excellent 👍 mam