Time and Work 1 | CAT Preparation 2024 | Arithmetic

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

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CAT PREPARATION 2024 I QUANTITATIVE APTITUDE PREPARATION for CAT 2024
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Пікірлер: 144

@ShekharSingh-fr3sh 2 жыл бұрын

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

@16psycheee 2 жыл бұрын

Same things happen with me 😂😂😂

@Santunu_Sen 2 жыл бұрын

1 sec k liye gotey mu me aa gaye 🤣

@OdinEditz 2 жыл бұрын

I thought my airpods got automatically connected

@surajagrawal7980 Жыл бұрын

Same here bro

@laila8064 Жыл бұрын

🤣🤣🤣🤣

@re431 2 жыл бұрын

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

@restyletime4918 3 ай бұрын

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

@arihantpincha6840 2 ай бұрын

@@restyletime4918 can you elaborate?

@dhairyamankad5516 2 жыл бұрын

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

@himanshumaurya7317 Жыл бұрын

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

@meghanarora4136 9 ай бұрын

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 9 ай бұрын

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 8 ай бұрын

@@Niteshh.Yaadav were u able to do?

@muskaanalvi5716 2 жыл бұрын

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

@PrinceKumar-ju6sd Жыл бұрын

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

@RiyaKarsayal-ju2sc Жыл бұрын

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

@harshgarg2302 4 жыл бұрын

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 4 жыл бұрын

you can follow him on unacademy.

@suryavoroy3527 Жыл бұрын

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

@unfiltered_13 7 ай бұрын

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

@sachinsuman3677 3 жыл бұрын

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

@poizonbee1902 2 жыл бұрын

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.

@user-sz9vx8rq6k Ай бұрын

NEVER EVER GIVE UP

@sanchit330 5 жыл бұрын

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

@Hershey615 3 жыл бұрын

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

@paridhigupta6219 3 ай бұрын

Sound 🔊Quality ☑

@nadeemasif3393 2 ай бұрын

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

@vasistas.b.9140 3 жыл бұрын

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

@manditbanthia7057 3 жыл бұрын

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

@Zestforlife100 2 жыл бұрын

Im am tooo CL student 😓😓 😓😓

@manditbanthia7057 2 жыл бұрын

@@Zestforlife100 I have only purchased their mocks

@shreya_sharma2 Жыл бұрын

@@manditbanthia7057 are cl mocks are good ?

@Akshay0108 Жыл бұрын

Sir i am very big fan after this video

@sanjayk1286 3 жыл бұрын

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

@roshqsarrosh4225 4 жыл бұрын

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

@vaibhavarora9784 2 жыл бұрын

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 2 жыл бұрын

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

@namansharma2721 5 ай бұрын

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

@vishaldevnani7828 4 жыл бұрын

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

@amadmi4623 Жыл бұрын

Watch at 1.5X SPEED

@krishnazawar8338 4 жыл бұрын

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 4 жыл бұрын

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 4 жыл бұрын

@@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 4 жыл бұрын

@@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 3 жыл бұрын

@@buddy9466 did u qualified cat?

@medharastogi 11 ай бұрын

I could never understand this better.

@ayushrahmat5273 Жыл бұрын

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 Жыл бұрын

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

@sukanyabaliarsingh204 3 жыл бұрын

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

@pulkittayal9615 5 жыл бұрын

Sir Please upload some more videos on Time and Work

@prithvirajdadage4656 Ай бұрын

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

@rajnishprakash9130 2 жыл бұрын

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

@sameer_gurjar19 2 жыл бұрын

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

@sachinsh6153 3 жыл бұрын

THIS IS HELPFUL. THANKYOU!

@Karan-wz7pt 7 ай бұрын

Amazing. Understood. Thankyou.

@Arunsuryawanshi01 2 ай бұрын

thank you straight to the point

@mohangaming4253 Жыл бұрын

This videos are useful for cat aspirants thank you sir

@sachindoddamani2304 2 жыл бұрын

Awesome content sir. Really helpful

@kratugupta67 2 жыл бұрын

You made it quiet simple..!!

@MuskanThakur-kw3gj Жыл бұрын

How 35 came can anyone tell me

@adityajoshi6422 11 ай бұрын

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 11 ай бұрын

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

@FlashStudies84 10 ай бұрын

Bro it's 9 in video also

@FlashStudies84 10 ай бұрын

Bro it's 9 in video also

@blackbox_55 Жыл бұрын

I will meet you soon sir after i crack iims

@NikhilSinghRajpoot Ай бұрын

Thankyou sir

@vipuljain1556 2 жыл бұрын

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

@sakshikeshri1632 Жыл бұрын

Very helpful, thanks sir🎉

@ananyadas670 Жыл бұрын

So good❤️

@songoku-jx3cb 5 ай бұрын

You are amazing . Thank you so much .

@siddharthshankar6170 Жыл бұрын

thankyou sir explained is so simply

@Dinesh__Jandagudem_29 Жыл бұрын

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

@ASHUTOSHPANDEY02 Жыл бұрын

you are a genius sir

@ashasrivastava2046 2 жыл бұрын

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

@saritsikharsarkar1729 Жыл бұрын

Excellent

@yuktasharma6092 3 жыл бұрын

This is very helpful vedio👍👍

@ayushjain490 2 жыл бұрын

Thank you so much sir for such wonderful videos

@suruchibhoj2441 2 жыл бұрын

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)

@pranalithakurani3552 2 жыл бұрын

Thank you, sir. Really helpful.

@malini8855 2 жыл бұрын

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

@AshwinMisra Жыл бұрын

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

@kunalsawant3832 2 жыл бұрын

sir you are just awesome

@kummaraditya Жыл бұрын

best🤩

@timanghosh6170 11 ай бұрын

Thank you Sir means alot ❤️🙏🏼

@sandeepkumarbehera5458 Жыл бұрын

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??

@vickyarora7380 4 жыл бұрын

Thanks sir

@PriyalbeingReal 3 жыл бұрын

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

@anishchar4282 8 ай бұрын

Thank u very much sir 🙏🏻

@rajparira 2 жыл бұрын

thanks ..got it

@akhileshgupta5660 Ай бұрын

For 2nd answer should be 15 days not 13 days

@georgemathew880 24 күн бұрын

And how's that possible?

@prasannabhortakke4401 3 жыл бұрын

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

@Dkkkkkk233 18 күн бұрын

Ab 3 sal bad bata u kya ? 😂

@kurdia2939 2 жыл бұрын

thank you so much sir!

@ManuSrivastava_ 2 жыл бұрын

Thank you so much sir.❤❤

@saloniraikar4228 Жыл бұрын

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 10 ай бұрын

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.

@dishasingh7482 3 жыл бұрын

Thank you, sir.

@rp8059 Жыл бұрын

Are these lecture helpful for ssc cgl ?

@vivekvardhanbehara8709 2 жыл бұрын

Thankyou sir!

@ankeshsingh2576 4 жыл бұрын

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 4 жыл бұрын

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 4 жыл бұрын

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 4 жыл бұрын

@@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 3 жыл бұрын

@@arunadityarajjain1129 lol

@uditgoel5633 2 жыл бұрын

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

@aditijain2247 2 ай бұрын

Please suggest the best faculty for CAT 24 VARC DI

@vasanthkannan7636 2 жыл бұрын

Can anyone provide me the link for pipe and cisterns please

@Shivam_General_Fitness Жыл бұрын

Thanku sir

@motivationalpage6120 2 жыл бұрын

Sir Bhagwan ho aap

@basicstoengineering6233 4 жыл бұрын

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

@snehatsamuel30 4 жыл бұрын

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

@eodkybb 5 жыл бұрын

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

@Rodha 5 жыл бұрын

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

@riyashishodiya4513 5 жыл бұрын

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

@rahulnarulaa 5 жыл бұрын

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

@Sidswamiofficial 4 жыл бұрын

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

@ShwetaGupta-md6mq 2 жыл бұрын

Have U got those 15 videos??

@rakshitsharma 3 жыл бұрын

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 3 жыл бұрын

It's like that only at Unacademy

@rakshitsharma 3 жыл бұрын

@@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 3 жыл бұрын

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

@abhisheksingh-in6ee 3 жыл бұрын

@@Rodha its not working sir

@thomasshelby5689 4 жыл бұрын

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 4 жыл бұрын

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 4 жыл бұрын

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

@ayushbhargava1062 3 жыл бұрын

@@arunadityarajjain1129 😂😂😂

@pranalithakurani3552 2 жыл бұрын

Why do we find LCM to calculate total work?

@manditbanthia7057 2 жыл бұрын

The calculations become very easy assuming their work through LCM