Time and Work 1 | CAT Preparation 2024 | Arithmetic | Quantitative Aptitude

CAT PREPARATION 2024 I QUANTITATIVE APTITUDE PREPARATION for CAT 2024
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[@ShekharSingh-fr3sh]

I thought my earphones wasn't working when I see for the first time that Rodha channel doens't have intro music :p

[@16psycheee]

Same things happen with me 😂😂😂

[@Santunu_Sen]

1 sec k liye gotey mu me aa gaye 🤣

[@OdinEditz]

I thought my airpods got automatically connected

[@surajagrawal7980]

Same here bro

[@laila8064]

🤣🤣🤣🤣

[@re431]

I was struggling with this chapter time and work because everyone was using fraction method. Finally someone used something that's simpler

[@restyletime4918]

Trust me ,There is something called the mrt method it's the easiest and most simple way to solve t&w

[@arihantpincha6840]

@@restyletime4918 can you elaborate?

[@shreyas_sam]

@@restyletime4918 explain please

[@meghanarora4136]

i am feeling so unprepared for cat 2023 but still really your teaching skills are commendable and you are doing a great job by providing education for free. It is said 'shiksha ka daan sbse bada daan hota hai'

[@Niteshh.Yaadav]

I feel you mate...Just completed LRDI playlist uploaded by Sir, haven't done anything else in LRDI. Also, thanks to sir, I feel I can do atleast LRDI in exam. Ravi sir 👑

[@deeptangshusarkar8868]

@@Niteshh.Yaadav were u able to do?

[@sahibsingh3089]

Bhai kaisa Raha

[@dhairyamankad5516]

It's so beneficial for every single aspirant. Thank you so much sir for giving such premium content:)

[@himanshumaurya7317]

I had read arun sharma sir quant also nd usually solve lod's but the way you teach this topic.......... My god so easy sir.... In my own perspective u taught very well ,,,, quite efficient than arun sharma sir ,he taught and wrote very well but 😍😍😍😍.... Because you reduces the decimal and all

[@suryavoroy3527]

aliter was interesting: lcm of number of days then find efficiency of each worker by dividing BY the number of days they individually take, LCM actually denotes total amount of work in a normalised manner which makes this method all the more efficient

[@muskaanalvi5716]

This is way better than my coaching simple easy to remember tricks

[@RiyaKarsayal-ju2sc]

God Bless You Sir. even the paid coaching classes aren't this efficient.

[@harshgarg2302]

Sir, P lease take weekly live classes to solve our doubt. It helps a lot to those students : who depends on self study/You tube.

[@swatibisht4572]

you can follow him on unacademy.

[@PrinceKumar-ju6sd]

sir u are genius, finally i understood this concept with clarity 😅

[@poizonbee1902]

we can just add ..... per day effiency and add them together like ...A+B+C = 1/12 + 1/20 + 1/40 = 19/120,flip the answer..its 120/19.

[@unfiltered_13]

I am watching your videos for csat and getting clarity of concepts every single day. Grateful:-)

[@sachinsuman3677]

Thank you sir :) Cleared this concept forever in my mind

[@iamyuvi215]

2024 CAT aspirants assemble 🔘

[@WEAREUPKING]

NEVER EVER GIVE UP

[@vasistas.b.9140]

thank you so much sir. I am a CL student, but your explanation brought so much clarity. thank you.

[@manditbanthia7057]

That's just wasting money CL, Times have derailed Sir is too good than these institutions

[@Zestforlife100]

Im am tooo CL student 😓😓 😓😓

[@manditbanthia7057]

@@Zestforlife100 I have only purchased their mocks

[@shreya_sharma2]

@@manditbanthia7057 are cl mocks are good ?

[@Hershey615]

Thankyou so much sir. Your concepts are really amazing and your lessons are helping me alot. God Bless You

[@nadeemasif3393]

Sir, you are such a good man. I cannot afford coaching fees and you are helping me.

[@paridhigupta6219]

Sound 🔊Quality ☑

[@varshneyaagarwal2160]

There's always an Indian guy on KZbin whose explanation makes life and concepts so easy!

[@ayushrahmat5273]

I may be wrong but i feel rather than taking the LCM for 'W' we can just multiply the given data(no. Of days in this case) it will be a quicker method and answer will also be the same

[@nihalajaheer4977]

The answer will be correct. But i guess it will consume more time tor bigger data

[@abhishekv1254]

genius solutions

[@krishnazawar8338]

Hello sir, Could you please explain me an apt method to solve the below question without using equations (probably by LCM method) Q. An engineer undertakes a project to build a road 15 km long in 300 days and employs 45 men for the purpose. After 100 days, he finds only 2.5 km of the road has been completed. Find the approx number of extra men he must employ to finish the work in time. a. 43 b. 45 c. 55 d. 68

[@buddy9466]

is the answer 68? if yes then you can do it by below way. 15000 M road was to be built in 300 days by 45 men. after 100 days, they could build 2500 m. so per day/per man work is 2500/(45*100)= 5/9 units. so remaining work needs to be finished in 200 days. which is (12500/200) = 125/2 units. one man does 5/9 units so 125/2 units will be done by 112.5. Since number of humans cant be in decimals so we'll take it as 113. we already have 45 men so additional is 68. if it is wrong, kindly suggest the correct way and answer.

[@krishnazawar8338]

@@buddy9466 Thanks Sachin. Your answer is correct. You applied an easy method! I solved it in the following manner: Number of man-days for 2.5kms = 4500 man-days Therefore, for 1km = 1800 man-days Similarly, for 12.5 kms = 22500 man-days (work remaining) No of men required = 22500/200(days remaining) = 112.5 men = 113 men (approx) Hence, extra men required = 113 - 45 = 68

[@AmanKumar-wh8tk]

@@buddy9466 very nicely solved. Taking 45 men as one single entity initially to calculate total units of work (Road built / number of days) and then dividing it by 45 to get efficiency of each man- was the highlight of this solution. Thank you for introducing this approach to me.

[@itachi3743]

@@buddy9466 did u qualified cat?

[@vaibhavarora9784]

Is this correct way to do Last question ???? 105 are total units And p+q efficiency per day is 12 If we divide 105 by 12 we get 8.75 days And remaining 5.25 are of P doing work alone

[@shashanktomar7670]

no after 8.75 days there is no work left for p to do

[@sanchit330]

Sir in certain questions it's difficult to find for which numbers LCM has to be taken. How to attempt those?

[@sanjayk1286]

the work u put on to this to give quality education ...really hatsoff sir

[@vishaldevnani7828]

There are only 3 videos on time and work. Where are the rest sir? Pls upload them. And pls rply as soon as you can

[@roshqsarrosh4225]

Thank you so much for the explanation! Completely understood the concept!

[@medharastogi]

I could never understand this better.

[@namansharma2721]

The Method 1 (that u crossed) is the Only method that they taught us at TIME

[@TheRizzGuyGaming]

thank you straight to the point

[@amadmi4623]

Watch at 1.5X SPEED

[@prithvirajdadage4656]

In the last question they both finished work in 14 days is confusing sir ,

[@rajnishprakash9130]

I never think of this chapter, it's that interesting

[@Akshay0108]

Sir i am very big fan after this video

[@sukanyabaliarsingh204]

This helped me a lot, thanks for making it in parts.

[@adityajoshi6422]

Hi sir, I think there is a mistake in the last question's answer. 5 days= how many days P worked for but we have to calculate after how many days P joined Q so that should be 14-5=9 days. Other approach for this could be 5t+12(14-t)=105 => t=9 days Also, thanks a lot for this video series. It's the best quant content for CAT out there. It's so kind of you to share all this for free.

[@siddharthsuman3429]

Can you please explain I wasn't able to understand how 9 days came ?

[@FlashStudies84]

Bro it's 9 in video also

[@FlashStudies84]

Bro it's 9 in video also

[@pulkittayal9615]

Sir Please upload some more videos on Time and Work

[@sameer_gurjar19]

Sir your lecture are very helpful thank you for the free lectures

[@mohangaming4253]

This videos are useful for cat aspirants thank you sir

[@sachinsh6153]

THIS IS HELPFUL. THANKYOU!

[@kratugupta67]

You made it quiet simple..!!

[@Dinesh__Jandagudem_29]

Sir classes of Compound intrest concept in instalments / future value concept

[@ashasrivastava2046]

Sir pls upload videos on pipe and cisterns also....Pls Sir

[@Karan-wz7pt]

Amazing. Understood. Thankyou.

[@Naren1893]

Are these lecture helpful for ssc cgl ?

[@vipuljain1556]

Sir ,you are the best . Thank you so much for these videos .

[@NikhilSinghRajpoot]

Thankyou sir

[@MuskanThakur-kw3gj]

How 35 came can anyone tell me

[@songoku-jx3cb]

You are amazing . Thank you so much .

[@blackbox_55]

I will meet you soon sir after i crack iims

[@aditijain2247]

Please suggest the best faculty for CAT 24 VARC DI

[@siddharthshankar6170]

thankyou sir explained is so simply

[@ankeshsingh2576]

Last question: Seems incorrect Total work: LCM of 15 and 21= 105 units effieciency of of P=7 UPD Efficiency of Q=5 UPD Efficiency of P and Q in one day=12 Both p and q worked for 14 days to finish in last : 12*14 =168U, which is more than the actual work 105 units

[@rithikharaghuraman5831]

Assuming, Q worked (initially)= x days Q+P worked (remaining) = y days Together they finished in = 14 days. So P and Q did not work together entirely for 14 days. We cannot add efficiency of P and Q (12 units) here. That's why he explains that Q alone worked all 14 days.

[@AmanKumar-wh8tk]

From next time, try reading the question carefully before proving someone wrong. Both of them DID NOT work for all the 14 days, both worked for some days and then one left. That's the first thing you could understand after reading the question.

[@arunadityarajjain1129]

@@AmanKumar-wh8tk both worked for some days and then one left? Seriously? Even you didn't read the question carefully. Q worked for some days initially and then P JOINED Q. No one left.

[@chandanbanerjee3721]

@@arunadityarajjain1129 lol

[@uditgoel5633]

@@arunadityarajjain1129 tera cat clear ho gya bro and college konsa Mila?

[@malini8855]

Only 3 videos are available for this topic. Can you please upload other videos as well?

[@ASHUTOSHPANDEY02]

you are a genius sir

[@sandeepkumarbehera5458]

sir you said we will discuss about ci in next video. but this is the last video.@Rodha can you please upload the next video??

[@ayushjain490]

Thank you so much sir for such wonderful videos

[@AshwinMisra]

7:13 this method doesn’t work for lcm (8, 12, 16, 20, 24)

[@suruchibhoj2441]

Thanks sir. Can you pls hell how who to find out the LCM of three or more nos ( by the same method of using HCF values)

[@akhileshgupta5660]

For 2nd answer should be 15 days not 13 days

[@georgemathew880]

And how's that possible?

[@PriyalbeingReal]

Sir, you didn't made videos on pipe and empty tanks!

[@Jayshreekandpal-c3y]

Sir I am attempting mocks of cl and getting only 15 percentile and not more than that what to do

[@timanghosh6170]

Thank you Sir means alot ❤️🙏🏼

[@prasannabhortakke4401]

Can anyone tell me how much syllabus has been covered on this channel? And what topics are not covered here?

[@Dkkkkkk233]

Ab 3 sal bad bata u kya ? 😂

[@sakshikeshri1632]

Very helpful, thanks sir🎉

[@sachindoddamani2304]

Awesome content sir. Really helpful

[@ananyadas670]

So good❤️

[@saloniraikar4228]

Hi sir one doubt at 13:42 sec why have you not divided the total work by the work efficiency of a+b (13:42 )

[@kronikevaporation6007]

A has left. B is working alone after 2 days. So the work after 2 days is being done by B alone. So divide the remaining work by just B's efficiency.

[@ZecTox]

sir you missed the banger

[@pranalithakurani3552]

Thank you, sir. Really helpful.

[@rakshitsharma]

Sir your content here is amazing but i also want to access your content on unacademy but i couldn't find a way to unlock just your content it's providing an option for unlocking the whole content of cat

[@Rodha]

It's like that only at Unacademy

[@rakshitsharma]

@@Rodha okay sir no issues about that! If I can get your email id that would be really helpful I want to get some of doubts cleared about your content on unacademy. Thank you for you content here sir You are helping students like us crack competetive exams.

[@Rodha]

@@rakshitsharma this is my telegram id t.me/Rav_Prakash_Rodha

[@abhisheksingh-in6ee]

@@Rodha its not working sir

[@kunalsawant3832]

sir you are just awesome

[@rajparira]

thanks ..got it

[@anishchar4282]

Thank u very much sir 🙏🏻

[@ManuSrivastava_]

Thank you so much sir.❤❤

[@pranalithakurani3552]

Why do we find LCM to calculate total work?

[@manditbanthia7057]

The calculations become very easy assuming their work through LCM

[@vickyarora7380]

Thanks sir

[@kurdia2939]

thank you so much sir!

[@saritsikharsarkar1729]

Excellent

[@kummaraditya]

best🤩

[@yuktasharma6092]

This is very helpful vedio👍👍

[@vasanthkannan7636]

Can anyone provide me the link for pipe and cisterns please

[@dishasingh7482]

Thank you, sir.

[@vivekvardhanbehara8709]

Thankyou sir!

[@AbhaySingh-dd9xc]

thank you sir

[@Shivam_General_Fitness]

Thanku sir

[@eodkybb]

Sir these are basics sums ...plzz make some high level

[@Rodha]

We have more than 15 vidies on time and work please follow arithmetics playlist we have covered from basics to advanced topics

[@riyashishodiya4513]

@@Rodha but I can't see more than 3 videos on time and work

[@rahulnarulaa]

@@riyashishodiya4513 same here .. where ar 15 videos ?

[@Sidswamiofficial]

Sir where r 15 videos .plse tell me sir .these r basics .we need more advance questions on time and work

[@ShwetaGupta-md6mq]

Have U got those 15 videos??

[@basicstoengineering6233]

Sir i have doubt on the last question might be it's incorrect

[@snehatsamuel30]

No..I solved manually and saw as well..its correct..

[@thomasshelby5689]

Sir in last question they both worked together and had done the 35 units together, so why we just divided 35 units with 5 whereas we must have divided by 12 that is combined. Please anyone clarify.

[@swapneelrao8276]

he has already calculated the amount of work done by Q in 14 days. That will not change since his each day efficiency remains the same. So the remaining "amount of work" was done by P.

[@arunadityarajjain1129]

Thomas Shelby, you are not a peaky fookin' blinder, you can't even read

[@ayushbhargava1062]

@@arunadityarajjain1129 😂😂😂

[@travelwithtiagoicng8013]

Taking too much time to explain basics. Can you provide pdfs for difficult question

[@kshitijbalonie4361]

Thankyou sir

[@aaqilhalyal6170]

Tq u sir

[@motivationalpage6120]

Sir Bhagwan ho aap

[@princeg.8834]

⭐️⭐️⭐️⭐️⭐️⭐️⭐️

[@vatsalparikh3574]

God!

[@rishav144]

👍

[@Ray.02]

W

[@Krishna_atnoor]

Thank you sirji