Quant Based Puzzles - Set - 4 || LR & DI Preparation for CAT || CAT exam Preparation 2024

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[@Abcnews18]

Very very conceptual, 1 question equivalent to 100 questions. thanks for such a high quality solution.

[@greentreerelaxingmusic2924]

This is a really high level set. Maine to pure saal ka calendar banake kiya, phir bhi sirf 1 hi question sahi hua 💀

[@monishmoolya8919]

💀

[@209akashkumar4]

Dukh hua sukar dost

[@TejasAcharyaa79]

We are on the same boat

[@nidhilohar8350]

Thank you for sharing such awesome videos!!

[@ompratapthakur5750]

In 4th question as per conditions given A G & I received water on 31st Dec 2013, and LCM of AG&I is 400 so only once in 2013 is correct, but if we assume they all received water on 1st Jan 2012 answer would be 2.

[@bobthebuilder802]

Yeah came here to say this

[@ksshitijj]

No it would still be 1. If they receive it on 1st Jan 2012, the next instance would be 400 days later that is some day in 2013, and the 2nd instance would be 800 days later, by which time 2013 would've ended and 2014 started. So only once in 2013.

[@divyanshimaheshwari1351]

I have been watching all these questions of quant based lrdi and is there any case that we can get PDF of all of these questions combined like all 17-20 questions. Please sir make it possible, it would help us a lot.

[@sukritansumaan]

nice set, could solve it in one go! amazing sir!

[@Da-anish]

Yes this is the set I have been waiting for🙂

[@kaushikplays3106]

❤thank you very much sir !

[@gauti_gaming]

Amazing Concept.. keep bringing more stuff like this.. 👍👍

[@sragav4559]

Thank you Sir

[@saveearth21century]

The question is similar to ssc reasoning multiple bells ringing question

[@jyotiranjannayak7992]

good job sir , thank you for your effort you are putting in making these videos . helping the cat aspirants like a well wisher.

[@adwivedi5658]

Qqqqqqqqqqqqqqq1q.

[@avyakaila7056]

In 2nd question, we had to check for 3 socities receiving water together, 1st time in April 2014 right. But according to the solution, the same scenario is not considered. Please check.

[@84y87]

The solution is correct. It's not missing any scenario.

[@vaibhav6139]

brilliant set sir, thank you!

[@Apex_predator_225]

Very well explained🎉🎉

[@samyakjain512]

Thank you so much sir😇, 9:35 MR INDIA😂😂

[@achyutawasthi18]

Thank You So Much Sir for this fruitful session ❤️

[@_cat_aspirant_99.9percentile]

Thank you very much sir ji ❤

[@JohnGomez-v5v]

Why in 3rd question, we also took 30th May as an answer as we are also having 150 as the LCM?

[@sanjaic7460]

same doubt, sir can u clarify ....

[@crazyclown2570]

30th May is the first instance during the year where maximum number of societies get water. Question is asking when is the second instance so answer will be 28th August 👍

[@tejpalsingh1107]

It's given that Panchsheel, Supertech, Amrapali received only on 5th day, 6th and 10th day respectively but it's not given that Gaur received only on every 16th day. So can't we take Gaur to receive water on every 2nd or every 4th or every 8th or every 16th day ?

[@kankanaki4368]

bruh it is clearly written that gaur received on every 16th day

[@087adityagupta3]

I have the same doubt because for the first 3 it is clearly written that they received only on that day.

[@adityaverma4770]

Thank you very much sir !! Your lectures are really helpful !!

[@vishaldobariya824]

thank you mr.india sir

[@ansumanrath4378]

Awesome set sir, thanks very much

[@rohitbehera4524]

For the last question should we take all the 5 societies as received water on 1st jan 2012 or we should take 31st dec 2013 as the day in which they all received as found out before ques 1??????

[@crazyclown2570]

You need to start from 1st Jan 2012 as written in the question.

[@_S_A_U_R_A_B_H]

@@crazyclown2570 ques me 31st dec 2013 mention hai, 1st jan se frequency count ho rha, to isse ye kaise conclude hua ki uss din sare socities ne recive kra hoga?

[@nishantkishore76]

Thank you sir

[@chirag.138]

❤❤

[@utsavraj8665]

Sometimes i think it’s impossible to solve such vast questions😢

[@Srishti_-sp3ee]

in the question whre it is 30th april as ans, i guess u forgot that march has 31 days sp jan-31,feb29,march-31 equals to 91 days not 90 days and hence it will be 29th april for 120 days and 9 april for 110 days....

[@graceraju4298]

Hi.. In 2014, feb has 28 days.. 2014 is not a leap year. Therefore 100th day will be 10th april.

[@Srishti_-sp3ee]

@@graceraju4298 aaa...that completely slipped my mind...tq for making me remember it😂

[@theIntelligentIndian-xf9qg]

aur mai toh poora calendar banane lag gayi thi... LCM wali baat hi nahi pata thi... Ravi sir I have a question.. i try to attempt all the questions first and then after failing i watch the solutions...but in CAT exam sets wont be repeated..so how will I solve there? Will watching these sets help??

[@crazyclown2570]

Now that 11 months has passed since you asked this. You might have found the answer. So did it help? 🤔

[@theIntelligentIndian-xf9qg]

​@@crazyclown2570 ​ It will help you immensely! It will help you grow your understanding and you will automatically be able to solve puzzles without any help. I cracked an IIM :D

[@crazyclown2570]

@@theIntelligentIndian-xf9qg Oh Cool! Congrats on cracking an IIM and thanks for reply back :)

[@crazyclown2570]

@@theIntelligentIndian-xf9qg bdw, if you don't mind sharing. For how many months did you prepare for CAT? and is good cat score enough to get into a good college or you also a need a good profile?

[@dineshkhandelwal6725]

@@crazyclown2570 score 96+ percentile in cat , your life is sorted , you dont have to worry about profile , just 60% marks in 10th 12th and grad thats enough

[@subhamchowdhury6229]

what should be the average time i should spend on any Lrdi set during actual examination?

[@arushgujral8002]

14 minutes with 80% accuracy

[@AmanKumar-wh8tk]

Go through all the 8 sets in around 10 minutes. If you think you can solve 4 or less sets, take 14-15 good minutes for each set. Else, if 5-6 sets are solvable, make it under 10 minutes. For more, start chasing the speed of light.

[@piyueshkalamkar8420]

@@AmanKumar-wh8tk what if we skip such problems ...is it good .?

[@Sujeet1919]

Nice ,sir

[@worldentertainer5263]

How come gaur receives water on 31st dec as it will receive on 16jan there on 16dec +after every 16day would be 32(16+16 therefore how come 31st dec)??

[@DevendraSingh-hs1gj]

because u don't know when is last time they will get water on same day (in 2012 ) so u have to reverse ur days to get 31st dec 2013 because may be in nov2012 they all are receiving water on same day so if u add 400 days u will get 31 dec2013 so in question its just mention about 2012 not dates thus u have to reverse ur days .

[@hussainabbasbw9190]

In the 4th question Amrapali, Gaur, Infinity, these 3 societies should receive water on a single day but the condition didn't mention "only" so it could have been more than three societies. So the answer should be 3 not 1.

[@mathematicsforclassxii3414]

But it is mentioned that they must get water together

[@purvifying]

Even if we add other societies, only 4 societies are possible in 2013, and the ans by taking LCM for others is 400, which is the same for 3 societies as well. So only on 400th day, they'll receive water together

[@pratikbhor2144]

Superb set... Plz, upload sm more sets from unacademy too :P :D

[@vivekbhople7228]

@Make In India Mobile ravi prakash

[@219hema]

May u tell me frnds how we r getting last time on 31 dec. In every instance ....?

[@pushkargholap7924]

When they say every 5th , 6th ,10th and 16th and 25th day they mean at those intervals so 1st soc receives water at intervals of 5 days and so on for others so if Panchsheel received water on 5th jan then the last time it received water 5 days ago which is 31st dec 2013 , same way water received on 6th jan will have received water at an interval of 6 days so again same , 31st dec and then deduct 10 ,16 and 25 from each date and you will see all received water last on 31st dec 2013

[@BullseyeBY]

sir in last question if all of them receive water on 31st dec 2013 then going reverse 400 days back, then it cannot happen in 2013 right???

[@avataranjit]

It was stated in question that this frequency being followed from jan 2012

[@ru7445]

Your logic is better than sir used i think. However answer is still the same, 31st dec, 2013 also comes under 2013. Hence "Only once in 2013"

[@careerroute392]

Sir if you counting a date since 2012 to 2013 so this answer become wrong ❌ because in manner they given in question so you can observe these three society can't received 💦water in singal day and your LCM logic is base on overall number of time they received water together but here when I count the dates as it given so output is different

[@jitheshsrai4992]

Your calculation is wrong I am getting proper dates as lcm while counting.

[@nexus987]

HOW GAUR REECEIVED ON 31st DECEMBER, 2013 FOR LAST TIME ?

[@simplethings7000]

gaur received on every 16th day so before 16 january, 16th day was 31st december

[@arijitsaha2790]

Sir in the last question i.e when A,G & I will receive water together in 2013? You are mentioning 365 days of (2012)+35 days of (2013)........But 2012 is a leap year, therefore it will be 366+34 days.....3rd Feb 2013(exact date). Anyway your videos are great.

[@dhruveshshah3601]

@Make In India Mobile He is just making aware in case date is asked.

[@kushalsrivastav3848]

In 2nd question why haven't we took 30th April??? These three also lies in april

[@sreyashroutray811]

The question reads "first" such instance, 30th April would be the second instance

[@saimathar007]

Sir why lcm formula not applicable any factors least difference ×co prime

[@koushikbera96]

sir how did you calculate 31 st dec 2013. i don''t understand this point

[@AvinashKapu]

Consider he time travelled backwards 5 days

[@pranavchaulkar2082]

@@AvinashKapu Exactly! On a funny note, Bhai he asked this 2 years ago, abhi tak ye banda IIM se passout / final yr rahega!

[@saveearth21century]

Jaruri h IIM hi gya ho 🙂

[@opnoobda8557]

@@saveearth21century bhai but 31 dec vala aya kaise

[@Swarnimshow]

why we didnt take 30 april as answer in 2 nd question

[@bastinbasti]

its cos in question it asked the first instance of occurrence , I too got confused there

[@219hema]

May u tell me frnds how we r getting last time on 31 dec. In every instance ....?

[@official9073]

Sir what you mean by LCM?

[@BNRFake]

least common factor

[@ayushikumrawat3099]

Lowest common multiple

[@nikhilanil9744]

sitter

[@MadaraUchiha-u3c]

sir I can't get it third Q ans..how it will calculated sir, please anyone explained

[@naveenkamath907]

all 5 societies cant get water in same year 2014 as it is on every 2400th day so only 4 societies can give water, by taking lcm of 4 societies there are only 2 posibilities left i.e lcm of 5 6 10 25 i.e. 150 which will come on may and its second on oct and second 5 6 10 16 ie 240 which will come around august so we take 240 one and if u add dates of each month till 240 you will get around 28th august

[@anweshamahapatra9278]

Why didn't we take the 150 days calculation as it'll be before August?

[@arjun6292]

Sir, the 31 st December was not clear.. It was boundcer sir...plzz expalin ds in another nad little detailed way

[@AdityaSingh_0503]

Understand this,It is mentioned that water is being received after x days. Thus it is mentioned that panchsheel received water on 5th January and it receives every 5 days.So if you calculate 5 days from before the water is received it will come as 31 December.The same logic is applied to all the societies as well.

[@worldentertainer5263]

How come panchsheel received water last on31st dec when 5jan then every 5th day would be multiple of 5 but 31st is not multiple of 5

[@tanveersingh5423]

did u get it btw? well, if not...see, some moths have 30 days..in those months last day to get water will be 30th.. now, lets say a month has 31 days, then if the society gets water on 5th date then the last time it will get on 30th..but in next month it will get water on 4rth date cause 31st day of previous month does this affect and is also counted..so for next month every 5th day would be 4,9,14 and so on... Just an example..for amarpali days would be:JAnuary(10,20,30)..31st january will be counter so in feb 10th day would come on 9th feb..so Feb(9th,19th)..since feb has 28 days..from 19th feb to 28th feb 9 days would be counted..then the 10th day will fall on 1st March..so in March(1,11,21,31)....see...that's how 31 which is not a multiple of even 10 can come...same is the case with 5. if 5th january is the day that means counting started from 1st january....that means previous day of getting water was 31st december 2013.

[@digvijayjadhav6403]

They are just assuming that the first day in 2012 was 1st January...and followed to that we have done the next calculation...we dont have to consider the case of 31st December 2013 in question 4.

[@yashshah3169]

Q2 ans should be 10th April or 30th April . How did you answer only 10th April?

[@prateekparashar6917]

If we add 31+ 29 + 31 +9 April days= 100 days.....from 31dec 2013......so first instance will happen only on 10 April.....in question they asked when will the first instance happen....

[@kushagra4379]

question is asking for the first instance

[@ydissidy8112]

I also got 30 april. Because the 1st instance in 2014 april should be between D811 and D841

[@shah048]

@@ydissidy8112 see on 120th day will get water ..but we want between 90 and 120 na

[@phillips221]

Sir at 23:32 how did you calculate 240th day as 28th August, can anyone explain how to solve?

[@Hemant_Gupta]

240 is the lcm of (5,6,10,16)

[@vaibhavmujawadiya9839]

1 January to 31August add all day like Jan has 31 days then Feb has 28 and so on till 31 August you get 28 Aug as 240th day

[@anubhabde7079]

@@vaibhavmujawadiya9839 still we'd get 27th aug, not 28th

[@vaibhavmujawadiya9839]

@@anubhabde7079 jan - 31 Feb -28 Mar-31 Aprl-30 May-31 Jun-30 July-31 Sum of this is 212, then Add +28 of Augst 212+28=240 💀

[@advikchatterjee8193]

Why ans is 10th April. 30th April ans why not?

[@avieroopghosh9070]

We have been asked ,ki first time when it will occur ?

[@kartikaymodi5265]

this set is explained in a wrong manner as it does not accounts that February has 28 days and not 30 days

[@riyamathili488]

31 (jan) + 28 (feb) + 31 (march) = 90 days, and that's exactly what he said. So yes, he did take that into account

[@saiabhinavbasa3899]

Bro it's just common sense that Feb has 28days no one needs to explain that

[@mindseaker-OR-WHOT]

Bro ap cat ki tyari chordo..😂

[@swagatomukherjee6401]

18:02

[@sanjeevnikhandelkar5698]

If you sum up jan feb and March together it will be 90days(31+28+31) no one is considering Feb having 30 days