Time Speed and Distance 6 | CAT Preparation 2024 | Arithmetic

Time Speed and Distance 6 | CAT Preparation 2024 | Arithmetic | Quantitative Aptitude

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5 жыл бұрын

CAT PREPARATION 2024 I QUANTITATIVE APTITUDE PREPARATION for CAT 2024
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Пікірлер: 159

@tanmaychandra9434 2 жыл бұрын

Awesome, last question explanation was lit. I am already feeling sorry for 7 people who dislike this type of content.

@16psycheee Жыл бұрын

I'm also ✨bro

@newsanalysis4831 Жыл бұрын

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@newsanalysis4831 Жыл бұрын

@@16psycheee kzfaq.info/get/bejne/ituDrZtonJ2nf6M.html

@motivationalpage6120 Жыл бұрын

They must be sir’s competitors 😂

@devanshvarshney9061 2 жыл бұрын

For train ques we can also do it like, Cat runs 3 unit for every x units of Train, Then if cat runs 5 units, train will travel x+8 units. Take ratio 3/5 = x/x+8 3(x+8) = 5x 2x = 24 X= 12 units. C:T = 3:12 = 1:4

@raunaksinghi1874 Жыл бұрын

yes

@raunaksinghi1874 Жыл бұрын

yes

@dineshrathi6991 Жыл бұрын

Did with the same mwthod😊

@AryanKhannaX 11 ай бұрын

On what basis are we taking the ratio though

@raghavojhabwr 11 ай бұрын

@@AryanKhannaX Cat runs 3 unit when train travels x unit. Cat runs 5 unit when train travels (x+8) unit. So, 3/5 = x(x+8).

@AshwiniSingh-yu6pv 10 ай бұрын

For the second last question,time taken for the man to walk both ways: W+B=5hrs 45mins 2B=3hrs 45mins--- equation 1 Therefore, (W+B)*2=(5hrs 45mins)*2 which equals to 2W+2B=10hrs 90 mins --- equation 2 Subtracting 1 from 2 2W+2B=10hrs 90 mins 2B=3hrs 45mins ---------------------------------------- 2W = 7hrs 45mins That's just my approach

@lokeshchinthala6125 8 ай бұрын

W+R =5h45 min If he ride bike in Both ways will decrease 2 hours(gain 2hrs) of his time. Already in W+R=5h45min he gained 1 hour( for both sides he would gain 2hrs , 1 side 1 hour) If he travels both ways by walk it will take 6h45 min 🤔🤔🤔 And if he ride both sides by bike it will take 4h45min (2h gained by riding both side).

@___DannyBoyka 4 жыл бұрын

in Train problem: 3:x 5:x+8..... so x=12 Hence,... for situation one, D= 3:12 .....so S also = 1:4

@satishchodisetti7896 2 жыл бұрын

How u can say x=12 directly?

@saylisalvi6782 2 жыл бұрын

@@satishchodisetti7896 equate the ratios. 3/5=x/x+8 , 2X=24 I e. X=12

@newsanalysis4831 Жыл бұрын

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@Shivam_General_Fitness Жыл бұрын

Thankyou very much sir, I took a coaching last year for CAT which costed around 38000, and it helped me to get interview call from CAP IIMs, but I was not happy with my performance. So I chose to self prepare, Your channel has proven to be a boon to me, I am now able to notice the knowledge gaps and reason behind my underperformance. The content, the detailed solutions, the method of explaining . All are Awesome. Thanks for making the content free sir. All the best and I wish this channel grows Tremendously in the future.

@kazhikkaam2942 11 ай бұрын

What was ur percentile

@Shivam_General_Fitness 11 ай бұрын

@@kazhikkaam2942 95.67

@ishajain5828 3 жыл бұрын

The way you explain concepts is just amazing. Thanks a lot Sir

@VinodKumar-nx7yf Жыл бұрын

Absolutely top class content available for free. You are doing a tremendous job Sir. Very commendable. ❤❤

@sanchitbhargava7738 4 жыл бұрын

After 2 hrs A distance is 160 km , B speed diff. is 16 km , it will take 10 hours to overatke the car, So Distance is 960 km, C will take 8 hrs, hence it will start after 4 hrs after A. A =12 hr , B=10 hr , c=8 hr (Total time for journey by A, B, C)

@poojakhattar4241 2 жыл бұрын

great explanation sir cant tell you how much we are getting from your content, thanks a lot for this

@rupashreenth 2 жыл бұрын

Hats off to sir for explaining each and every topic in such a simpler way ✨

@newsanalysis4831 Жыл бұрын

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@sacha_bhakt_ 9 ай бұрын

Another video with soo much brilliant concepts .,,❣❣🙏🏻

@rishavkhandelwal9323 3 жыл бұрын

Ravi sir doing 3-3 za and 5-5 za at 5.45 - 5.50.....haha kitna bhi speed maths seekhlo, this is the best ways to solve multiplication and division. :-P

@hanishshetty8038 3 ай бұрын

for bike and walk question When 1 bike is replaced by 1 walk (diff) = 2hrs, therefore, when 2 bikes are replaced by 2 walks the difference would be = 4 hrs hence, walk + walk will be 4hrs extra to that of bike W+W = (B+B) + 4hrs W+W = 7hrs 45 min

@bhagirathsharma7505 3 жыл бұрын

Fantastic concept 👌

@hussainpunawala6113 3 жыл бұрын

In first qsn if speeds were not in hp then how would we solve? Please can someone explain

@usha124e 9 ай бұрын

Thank you so much sir for these series. Your explanation easly understood.✨

@simplypsychology6114 11 ай бұрын

In LCM method we sometimes add the hours and some time take difference why and when to use each method please clarify

@josephbj8766 Жыл бұрын

In the first question, instead of checking it first, can't we assume speeds are in HP since distances are the same?

@praveenkumar-qo9nl 2 жыл бұрын

Man you are a piece of gem!

@newsanalysis4831 Жыл бұрын

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@yashdeepsingh6515 2 жыл бұрын

You are GOD LEVEL. THANKYOU

@himanshumishra7467 3 жыл бұрын

My fav teacher❤️

@josephbj8766 Жыл бұрын

Last question was brilliant!

@roshqsarrosh4225 4 жыл бұрын

Thank you so much sir!

@architttt4614 2 жыл бұрын

in the 7pm,2pm office question, if we solve by difference in time taken method the speed comes out to be 360/7 km/hr. is this right or wrong?

@deepakgulia3863 4 жыл бұрын

Sir how can I know that I has to take difference and the sum of time in ques. where distance is assume as the lcm of speed

@newsanalysis4831 Жыл бұрын

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@ankurchawla2140 3 жыл бұрын

Tysm sir ❤ upload more videos big fan

@cheaterjynx8330 Жыл бұрын

Can u solve q2 in lcm method? If so how?

@priyankasaini6389 11 ай бұрын

Sir my quant is weak , what can I do ?? For ,pl guide me ..

@nakulkaushal4473 3 жыл бұрын

Is train & cat question it should be 4:1 not 1:4 Because in ques it's ask about speed of train to speed of cat. Not cat to train and obviously train is faster than cat so it should be train which is 4

@Copyninjaaa Жыл бұрын

Awesome sir

@ashokkrishnant9903 3 жыл бұрын

Great!

@aaravsingh1476 2 жыл бұрын

You haven't mentioned about meeting questions. Just one variety of questions.

@mrsahilrohilla 3 жыл бұрын

In Train & Cat question cat will surely catch by the train Hence cat will dead , R.I.P. for the cat 😂

@karthikmadhusoodanan7274 3 жыл бұрын

hence the answer should be Cannot Be Determined , out of respect for the CAT.

@abeginnerspov5968 3 жыл бұрын

@@karthikmadhusoodanan7274 I see what you did there

@monilshah2383 Жыл бұрын

d=d 60(14-x)=40(19-x) [Converted time into 24 hour format] x=4, Which is 4 AM d=d 40x15 =Sx13 S=600/13 Ans.

@anuraggupta3864 3 жыл бұрын

In 2nd ques where the speed reqd. to reach office at 10pm, can we calculate that By speed time ratio S1/S2 = t2/t1, 15/s2 = 10/9 =13.5??

@akshaysawhney387 2 жыл бұрын

Those are not the actual times, those are click times. Take t, t+1, t+2

@pawanyuuvi5683 9 ай бұрын

Thank you for these amazing lectures sir ❤❤ I am cleaning my concept from your lecture and practicing from Arun Sharma book. If i convert my dream college, whole credit will go to you❤ I will appear in CAT 2024.

@selinakaushik1096 15 күн бұрын

i have arun sharma but i still havent practiced from it, after watching sir's video are you able to solve the arun sharma problems ? i mean are the questions of same level?

@bhorikaaggarwal7412 3 жыл бұрын

Sir in previous video question related to scooter speed we add time of both speed as 4+25=29hr and in this video in question reach office at 6pm and 2pm you have subtract the time 3-1=2hr why?? How should we know that we have to subtract or add time ???

@satishchodisetti7896 2 жыл бұрын

By the question, what we have to find ,in this way

@snehalbhardwaj6040 Ай бұрын

can anyone tell , how to know when to take the time difference and when to sum the assumed time ?

@dishasingh7482 2 жыл бұрын

Thank you, sir.

@vatsalparikh3574 8 ай бұрын

Maza aa gaya sir

@navyawhig Жыл бұрын

for last ques - Vt = speed of train, Vc = speed of cat, when moving towards entrance, Vt+Vc=3d/8, when exit, Vt+Vc=5d/8, solve u get Vt/Vc=1/4

@NavIK_IAS 7 ай бұрын

last Q. Train whistles from 3/2 of length of tunnel from point A

@sanskriti12342 4 ай бұрын

Is this your first attempt at upsc?

@saloni2496 3 жыл бұрын

Thank you sir.

@simranpurswani3209 Жыл бұрын

Thank uh so much sir

@zeleoz463 3 ай бұрын

Last question is OP 🔥

@ShreyashPatil1811 Жыл бұрын

Roman Saini(The Founder of Unacademy) once said: Jo log aapko apne swarth se upr uthkar padhayenge aise teacher aapne dhundne chahiye And Ravi Prakash Sir is Good Example of that They have created these videos with so much effort in it and that too Free

@littlebait1219 5 ай бұрын

Ek daam jhakas🥵🥵

@prabhatsingh5627 2 жыл бұрын

OP ravi sir 🔥🔥

@lokeshchinthala6125 8 ай бұрын

@tanmaydey3008 2 жыл бұрын

Thank You sir

@darkhorse487 11 ай бұрын

Thank you

@Abhijeetkr_2211 5 жыл бұрын

Sir, how should we know that in particular question i should go with AP or HP approach. I mean to say that how should i identify that this problem could be solved by using AP Or HP approach?

@sahilkapur312 4 жыл бұрын

speed will be given for 3 or more than 3 variables

@manishlohani9580 Жыл бұрын

These doubts make me so confused If at 40 km/h he reaches at 7pm and so to reach at 5pm. From 7 PM to 5pm time decreased by 2/7 times so speed should increase by 2/5 times from 40km/hr and it should be 40*7/5=280/5 km/hr but why is it not 600/13 km/hr plzz explain I m really confused as distance is constant and time is inversely proportional to speed

@KlutchyRex Ай бұрын

3rd question can easily be done by difference in the ratio of time and speed and using distance = speed/time

@amishasahoo7376 6 ай бұрын

Thankyou sir 🙏

@satyampurohit6187 3 ай бұрын

for one of the videos in the TSD series which involved a man and his daughter who picks her up from school , we noticed that he saved a total of 15 mins we divide that 15 mins into 2 parts 7.5 mins and 7.5 mins for going to and fro, but for this question involving riding bike and walking why cant we divide the 2 hours saved into 1 hours while going and 1 hour while coming ? if we do that we get 6 hrs and 45 min. Please explain why this method is wrong ?

@shub.ham1 Ай бұрын

In both cases he is returning from his bike only...so how can we take 1 hrs for both ways?....if he uses bike instead of walking then only he is saving 2 hrs

@anvith4529 4 жыл бұрын

In the walking and riding problem, in 5hr 45mins riding time is also involved so shouldn't we solve for 1riding time and subtracting it by the walking and riding time before we add 2hours to the walking time

@arunadityarajjain1129 3 жыл бұрын

same doubt, anybody got that?

@dyutipurohit6036 3 жыл бұрын

@@arunadityarajjain1129 You will get the same answer by that also, but the approach by sir is logical and direct hence saves the pain of calculation.

@namankhandelwal6365 3 жыл бұрын

It'll be 6hrs 45 minutes bro

@siddharthyadav9625 3 жыл бұрын

Easier explanation would be , Instead of walk and ride , just compare ride - So if both side riding takes 3hr 45 mins and if we replace 1 ride with 1 walk we gain 2 hrs. So if we again replace second ride with walk we would gain another 2 hr . Thus - 3 hr 45 mins + 2hr + 2hr = 7 hr 45 mins .

@restyletime4918 7 ай бұрын

i really felt proud when i solved the last sum bymyself withpout even touching pen 😀😁(coz i have already seen this somewhere)

@nisheshojha3539 Жыл бұрын

In time by walking and bike problem 19:45 , Assume time by walking one way as Tw and biking one way as Tb, then Tw+tb = 5 hrs 45 mins = 5(3/4)(Read this as a mixed fraction) = 23/4 hrs 2Tb - (Tw+Tb) = 2 hrs => 2Tb - 23/4 = 2 => Tb = 31/8 Hence, Tw = 23/4 - 31/8 = 15/8 2Tw = 15/4 = 3(3/4) = 3 hrs and 45 mins.

@adityagoenka2808 9 ай бұрын

It should be (Tw+Tb) - 2Tb = 2 hrs => 2Tb = 23/4 - 2 => Tb = 15/8 Hence, Tw = 23/4 - 15/8 = 31/8 2Tw = 31/4 = 7 hrs and 45 mins.

@jyotitripathi1543 3 жыл бұрын

At some places you are taking time difference for assumed distance and at some places you're adding time for assumed distance .. How to know what to do and when

@fretboard1242 3 жыл бұрын

Same Issue

@sshvibha 3 жыл бұрын

it depends upon the question ,in 2nd question for example the speeds are 12 and 15 kmph and they reach at 11pm and 9m respectively. with 180 km distance (which got by lcm) we get t=15 hr (1st case) t= 12 hr (2nd case) here sir has took difference beacuse, to reach at 10 pm which is median of 11pm and 9pm if you add the times 15 hr + 12 hr =27 hr it doesnt make any sense .we have to think logically case by case.

@sshvibha 3 жыл бұрын

u can compare with the 2 nd question of the previous video that is time speed distance 5 th tutorial

@AyeshaKhan-it8kg Жыл бұрын

Sir if times is in hp , so speed should be ap. Then how we calculate speed in ap ?? Please tell

@priyasuthar840 Жыл бұрын

What's your question , you want the speed in ap ? if a,b,c is hp in time , then 1/a,1/b,1/c is AP in speed .

@chinmaysomani5387 3 жыл бұрын

8:40 time difference is 8 hours, not 4 hours, and the answer will be 240.

@lostinlife4338 3 жыл бұрын

Both the times are in pm so the difference is 4 hours not 8.

@poonampoonam4629 Жыл бұрын

I guess the answer will be 4:1, not 1:4 as in ques it is asked about the ratio of the speed of train to the speed of a cat.

@learnalways764 2 жыл бұрын

Fantastic experience

@dakshagrawal622 11 ай бұрын

For the last question the speed ratio should be reversed i.e 4:1

@aimwbcs5272 4 ай бұрын

@Elsa-rr5rw 2 ай бұрын

@@aimwbcs5272 He is correct. It should be 4:1 in terms of the qn asked

@rawclipsmdp 2 жыл бұрын

Rodha community 💚

@dimpigupta1106 4 жыл бұрын

The question is asking for ratio of trains speed to cats so ans should be 4:1. Isn't it?? I always get confused on this plz help

@jaysolanki6894 4 жыл бұрын

Yes.. You Are right.. Here in last que we write ans is.. Speed of cat to train = 1:4 ..then inverse of it become 4:1 is ratio of speed of train to cat...as you say.. ✌

@challengemania4447 4 жыл бұрын

I also got confused

@techtalkies4119 4 жыл бұрын

no because in that question relationship is takenj between distance and time which are directly proportonal so ans will be 1:4 only

@arunadityarajjain1129 3 жыл бұрын

@@techtalkies4119 vo baat to koi kar hi nhi rha dost

@abhinandandas3226 3 жыл бұрын

Yes and he has written also SpeedofCAT : SpeedofTRAIN = 1:4 answer is the opposite

@sakethgutha2117 Ай бұрын

The train in the last question is Balakrishna😂(Tollywood followers can decode it). Jokes apart, this is a wonderful video with the simplest explanations

@dheerajkumar4487 2 жыл бұрын

27:37 GOOD CONCEPTS

@newsanalysis4831 Жыл бұрын

kzfaq.info/get/bejne/mdqegNyQma2-iKc.html

@deeptijha861 4 жыл бұрын

Sir relative speed to bahot vast topic h.. U hv covered only in 1 video.. Sir I want to see more of the relative speed concept. Sir pls reply

@shwetak8477 4 жыл бұрын

he has made 5 vid on relative speed

@deeptijha861 4 жыл бұрын

@@shwetak8477 send me link

@shwetak8477 4 жыл бұрын

@@deeptijha861 its in the playlist: kzfaq.info/sun/PLG4bwc5fquzgfMh4YFDnv7fttM0RIKiUQ

@ashokkumar-pj2zm 2 жыл бұрын

Can anyone help this, 7 pm - 15 hrs = 4 am, how?

@saptarshidas488 2 жыл бұрын

Take out 12 hours from 7 pm, you get 7 am. Now subtract 3 hrs more, you get 4 am

@lornemalvo2171 3 жыл бұрын

Last question's ratio, SC:ST = 1:4 And in real life, marks required for selection, General:SC:ST = 69:4:1

@bobghosh8313 3 жыл бұрын

Lol😂

@AjayVerma-hk1db 2 жыл бұрын

The guy in the second last question should ask for home posting. He is travelling too much for work.

@pratibhasinghrathore9470 8 ай бұрын

In 3rd question we can directly get the answer by applying the formula of Distance=Speed x Time 20x6=120 60x2=120

@SimranKaur-sj5zt 6 ай бұрын

But i think that 6 p.m. is not the hours taken for the travel. Hence it cannot be taken as time in the speed time formula. Had the question said that he started travelling from 12 p.m. we could have taken the time travelled as 6 hours.

@bhuvansharma201 Жыл бұрын

They say the cat is still running !

@Eth_com Жыл бұрын

Superrr amazing explanation sir❤❤❤❤❤❤🙏🙏🙏 Btw sir cat was alive or not in the end?

@Rodha Жыл бұрын

:P think positive

@Eth_com Жыл бұрын

@@Rodha sure sir ❤❤❤❤😊😊😄

@adityaagrahari6163 Жыл бұрын

hehe😂

@saptarshimozumdar1657 2 жыл бұрын

Should not the last one be 4:1 ? Ratio of speed of train to speed of cat?

@shivangisingh6687 2 жыл бұрын

yes, it is 4:1

@BSbscphysics-yu4cr 3 жыл бұрын

Feeling bad for the cat

@YashPatel-dw3ni Ай бұрын

💙💙

@kshitijbalonie4361 4 жыл бұрын

Thankyou sir

@Surajpatra111 11 ай бұрын

This question are hard . To solve every question i need to see the solution 😢

@Rishi9361 Жыл бұрын

what is meant by isspeed😂

@KlutchyRex Ай бұрын

these people really gotta move near their offices

@panduranga5318 Жыл бұрын

the cat di.......😭😭😭😭

@technicalspider2547 2 жыл бұрын

22:00

@hareramtiwari995 6 күн бұрын

12:29 bro got placement out of country 😂😂😂😂

@adyashamohanty197 Жыл бұрын

20:00

@339vaquasjunaid8 3 жыл бұрын

Raat me office kya karne jaa raha? In second question 🤔🤔 5:20

@krushangshah1105 3 жыл бұрын

'night shift ' kabhi suna hai bhai?;)

@sreyashroutray811 2 жыл бұрын

For better clarity wrt tunnel question Train is at distance 'y' from the start of the tunnel and length of the tunnel is x ( AB ) Case 1 : Meeting at beginning of the tunnel [y/S (Train)] = [{3x/8}/ S ( Cat )] Case 2 : Meeting at the end of the tunnel [(y+x)/ S ( Train)] = [{5x/8}/ S (Cat )] Solve both the above equations 2y=3x ===> y=(3x/2) We need for 3x/4 ====> y/4 Ratio : 4:1

@sanklan10 3 жыл бұрын

Fun Hack- Watch at 1.5 speed, its still very understandable. Thank me later

@abeginnerspov5968 3 жыл бұрын

No sir, 1.25x is better

@AshwajeetKamble 2 жыл бұрын

i watch at 2- 2.5 speed..lol

@sanklan10 2 жыл бұрын

2.5 lol, watch inequality session please :p, upper limit here is 2 😂

@AshwajeetKamble 2 жыл бұрын

@@sanklan10 have you ever heard about "browser extensions " ....LOL

@AshwajeetKamble 2 жыл бұрын

@@sanklan10 dara mat bhai...🥲

@DSA_Coding 3 жыл бұрын

cat died sad.......

@nef_nef 3 жыл бұрын

🐈 has 7 lives , u forgot? Idiot?

@DSA_Coding 3 жыл бұрын

@@nef_nef idiot u!

@abeginnerspov5968 3 жыл бұрын

Btw, cats can also climb walls.

@Mephisto-3 5 ай бұрын

Why can't we solve the third que by ratio method. S increase by 3/1 & so time should decrease by 3/4. Change in time is 4 hours. Thus normal time should be 16/3 hours. Distance- 16/3 x 20 kms.