Problems on Trains - Shortcuts & Tricks for Placement Tests, Job Interviews & Exams

[@CareerRideOfficial]

Practice Questions on "Problems on Trains" available at: www.careerride.com/mcq/problems-on-trains-quantitative-aptitude-mcq-questions-24.aspx

[@AshishKumar-pg2nh]

Please cover Race and Game related topics as well.

[@dsrarv]

In the 9th Question length to be crossed by the train must also be only L, Why did we take 2L?

[@shivanipatil2496]

@@dsrarv 2 trains ..so adding both distance ..i.e L+L = 2L

[@VijayKumar-nc8si]

Thank you sir for being a part of my step to Success, I got placed in TCS DIGITAL today !!! Your are one of the reason for that

[@dipali_d4279]

Congratulations to u! Did u only follow this channel for the apti or u referred books as well?

[@CareerRideOfficial]

That's a great news! Congratulations and all the best! Do share the videos with your friends too :)

[@VijayKumar-nc8si]

@@dipali_d4279thank you, First I watched all the videos here, and referred R S AGARWAL book.

[@VijayKumar-nc8si]

@@CareerRideOfficial thank you sir, yes ofcourse sir

[@Longshlur-rw7zp]

What is the name of the book? Plz tell i want to buy

[@rupasridad]

For 5th question: d= s×t * "t "we can find it from extra distance/ extra speed i.e 40/120-100, 40/20 =2 * relative speed = 100 +120= 220 So, d= 2×220= 440km

[@vanshikaagrawal7417]

Sir, I think you should be given award for this selfless service

[@veenawarkey4044]

For question no.6, we can also solve this way: In 1 hr train T1=90 km then in half an hour 45km .since 90 km/hr Now both the train run at 8:30 pm means time same then equating T=D/S, (x-45)/90 =x/120 x=180km

[@asadarsh11111]

I didn't understand why in this question they have used (T-0.5). Since it started late it shud be (T+0.5) ryt? And I find your way of solving this much more easier

[@tyrotravelog]

@@asadarsh11111 suppose they are meeting at 11 pm then A takes 11-8=3, and B takes 11-8.5=2.5.

[@ranjitsingh-sx9qv]

❤️

[@adv1494]

@@tyrotravelog how does that work one train is faster so it will reach earlier.

[@CSEKAVIYAJ]

Why x-45

[@abrarahmad6370]

30:36 In question 6, shouldn't train B take half an hour more than train A since it started late? So the correct equation should be: 90 x T = 120 x ( T + 0.5 ) arent I right?

[@balaashwanthb5676]

Say if the train A meets the train B at 12 pm(t) Then wouldn't it be t- 30min for the train B to meet train A.

[@jarvis3551]

Q6 can be done in just 2 lines Time is constant when 2 objects meet Let P covers x distance and Q covers x+40 distance x/100=(x+40)/120 120x = 100x + 4000 20x = 4000 X = 200 Total distance between P and Q = 2x + 40 = 440km

[@lavanyas4563]

Sir ur way of teaching is very simple..thank you ....! Im an bank aspirant .for the past two years i ve been trying... Even if iknow the concepts i m solving oly quadratic eqn,simplification and data interpretation in aps ...i get nervous even i know the concept.that is the reason of my failure...im rectifying it.carreerguide videos help me a lot now ..thank you !

[@ruchapathare292]

Wishing a very Happy Teacher's Day to the entire careerride team and especially to the person who has given the voiceover for all the careerride videos!!

[@CareerRideOfficial]

Thanks for your wishes, Rucha! We appreciate the love our visitors and subscribers are sending across our way. Each one of you is so valuable to us. Your wishes have been communicated to the team and the teachers :)

[@Sankalp_359]

@@CareerRideOfficial Sir, why D1 and D2 should be added in 4th problem?

[@sugurayyaswamy]

Ultimate teaching...... No words against this channel... Im really very happy to know the clear concepts about Aptitude problems

[@CareerRideOfficial]

Thanks, Sugurayya! Glad to know that you found this video useful. Do share it with your friends as well and stay connected! :)

[@sajinrajs7176]

We respect your efforts. Concepts are explained very clearly.

[@melodyking4342]

For 6th question we can use this formula as well S1×S2×T = --------------------- S1~S2 90×120×(1/2) = ------------------------ 120-90 90×120 = ---------------------- 30×2 = 180

[@juhinavlani5230]

Wow. This is really helpful. Thankyou for this. Glad to find CareerRide on youtube😀

[@chidanandpalled7974]

Always helpful with the tricks and logic used; easy to understand

[@cricket11.642]

Sir your teachings is awesome but there are some problems among them which we can solve in other methods and in a very short steps and much easy way.

[@itsmine6396]

Thank you so much sir, you made all questions so easy by saying "how easy it was"

[@sandeepbanerjee7548]

Sir your way of explanation is so natural and easy..... But when any problem other than your questions comes to me I feel nervous and my mind stops working, actually I forget every concept and method and the question becomes harder and harder.

[@CareerRideOfficial]

Thanks, Sandeep. The only way to overcome nervousness is practice. Practice the chapter immediately after you have seen the video. Hope this helps :)

[@hrishabhart]

all questions are great with different scenarios🤗

[@jagadishyadav4800]

5th question can be solved in this way also From P a train speed is 120km/hr it means for 1hr it travels 120km & for 2 hrs=240km similarly From Q .1hr =100km 2hrs =200 In the question given as 1 train travels 40km distance more See those distance travelled by the trains 240 and 200 We got 40km more distance from the train which is starting from P Condition satisfied. Count the total distance travelled by the two trains 240+200=440

[@RAHULGUPTA-vc1oz]

sir i see approx all of video so intersting and very useful for me thanks a lot sir

[@mrinaldutta4273]

What a fantastic video.. After a long time I have seen such video with great concept.. I am used to wify study adda247.. But this video breaks them all... Thank you sir... Keep such more video...

[@Mukendra_Kumar]

In Q6 in respect of train A time is 2hours and with respect to train B the time is 1 hour and 30 min to meet each other

[@gaurigokakakar6887]

Beautifullly taught❤

[@Allinone480KST]

Sir due to you I become central minister of Himachal pradesh ❤❤❤

[@CareerRideOfficial]

Apologies. I didn't get that ....

[@_y4164]

😂😂​@@CareerRideOfficial

[@alekhyaa1146]

Best and easy explanation to all types of quant problems

[@Cracks_guys]

In question number 8 60 min = 40 km ? min = 4km Just divided by 10 Ans is 6 min..

[@aayushishah885]

I dare whoever is reading this to take a shot everytime sir says "nothing but"😂. No offense to him his methods are so simple and great I wish he was my 10th std math teacher

[@allcompetativeexams2987]

for question number 6, I think time taken by train B is (T+0.5)

[@aayushithakur3881]

No, the train leaves half an hour late that's why we subtract 0.5

[@ajaybeliefon_life]

@@aayushithakur3881 i didnt understand pls solve it here.i got 1 hr30min so confusing

[@right_way1723]

@@aayushithakur3881 If the original time for the train to reach is T, and the second train is half an hour late, it should be T+0.5, because it is reaching late!! isn't' it?

[@srivallipasupuleti6021]

Superb explanation with reasonable logics👌👌

[@studentkumar-f4t]

5. T1=T2 , (x+40)/120=x/100 , (x+40)/6=x/5 , 5x+200=6x , x=200 , x+40=240 , Distance b/w P and Q = 200+240=440km

[@kodebrahmini1273]

Very good explanation sir, you have covered almost all the topics. It would be helpful for us if you also cover data interpretation topic(bar,pie graphs)

[@valengammungvi1210]

Yes pls

[@sumandutta7515]

Thank u for giving this helpful video.Your teaching is also very nice

[@nikhildeo9]

For Question no.6: The train that leaves at 8:00 am would be (90*45/60)=45km ahead of the other train when it starts. Also, the relative speed being 30 km/hr , the distance from Kolkata would be (45/30)*120=180km.

[@suhailmik3713]

how 45 ?

[@durgeshsingh6380]

Best playlist I have found on KZbin

[@mahekabbas4179]

Really..I appreciate your efforts..this video is really very helpful..

[@ashishrajora5464]

Hlo

[@OmarElghamry1]

Thank you for this quality content

[@rinki46988]

Best Playlist for quant

[@sardhakmilin18]

For 6th and 9th I have a short cut to calculate that is for 6th two speeds 90 and 120 360 is the common point soo 360/2 is 180 that is the answer and for 9th 5sec n 6sec common point is 30 soo as it is time 30*2 is 60 that is the answer is it applicable for every prblm That them sir

[@pankajchauhan9770]

Shortcut vagera kahin you tube channel py milngy kya

[@_ash_._arts_]

Y is it that u are dividing 2 in the 6th ques and multiplying by 2 in the 9th ques?

[@yamiftw9949]

Best explanation till now

[@netflixaccount6607]

7:50 its funnier to remember the relative speed formula 😂

[@mab3079]

In the question of Kolkata and Sikkim, I assume that, instead of subtracting the time we must add the time (0.5)

[@neoweb5818]

Thought so

[@sonu-wh2ld]

Me too have the same doubt

[@tarjmsmnn]

same doubt T2 will take 30 min more than t1

[@vishnusurendran9326]

2nd problem was easy to find by deducting 8 sec from 28 and 200/20 =10 m/s then 10*8 =80 m

[@latestupdates.]

36.54 you take equation 1 to reduce time it's easy to solve than equation 2

[@retrogame3138]

why u stopped making apti video please make it more u r awesome

[@divyarohilla1324]

Sir , here u have taught that attracts means in opp. Direction which mean + and same means same direction which mean -(minus). But we have also learnt downstream (same direction) means add and upstream ( opp.direction) which mean subtracting. Could u clear this doubt please.

[@avm9742]

Opposite means + and same --

[@Asu_tosh]

Boat agar downstream or neeche jayega toh boat ki speed badhegi aur boat ki speed jyada hogi isliye "+" hota hai aur upstream or upar jab koi boat jata hai tab uski speed kam ho jati hai isliye "-" hoga

[@michallukac9980]

I didn't quite understand in the example 4. why couldn't speed of the T1 be counted as (X-14) and T2 (X)? The speed of the T1 would = 18.5km/h. How do I decide which one to use?

[@99isthereality90]

Why do you want to reduce if the question is that one train takes 14 minutes more? No need to consider as one train being faster than the other.. it is actually one train is slower than the other..

[@tusharsrivastava2940]

It is one and the same thing as if T1 comes 18.5 km/hr then T2 will be 4.5 and in question it is asking speed of slower train so answer will be 4.5km/hr only.

[@30.ayushyadav41]

sir in 5th question we can do as we know time is same quantity for both so we equalize time T1=d/100 T2=d+40/120 6d=5d+200 d=200, d+40=240 , total 200+240=440 In question 6 we can do let the time be t so our second time be t-1/2 distance be d t=d/90 , t-1/2=d/120 as we know t=d/90 our equation will be d/120-d/90=1/2 on solving we get d=180

[@hrithikaraju]

31:45 can we calculate distance by taking the speed of B train?

[@monikavaidadi6449]

SAME DOUBT...

[@shresthadutta1793]

Yeah gives you the same result

[@VARUN_D]

Thanks your the best

[@nitinjena5785]

for Q3 train speed is missing and is has to be constant for all the object so if i plug in lengths of train and platform and divide by time i will get the speed. S = D/T = 150+550/ 56 S = 12.5 Now i can put this for 250+150/12.5 = 32 i found this easy instead of figure cross division.. ppl who struggle what just happen😅😅😅

[@neelavathik558]

Awesome video ever... Neatly presented. Thank you for such amazing video,.. Sir also can you please teach us the coding problems, it would be beneficial for the placements

[@yogeshmekhe4813]

Hi

[@shirleycharles3139]

Sir. In the last sum, time was asked for the 2 trains in which they would cross each other. In this scenario, why should the relative speed be added instead of subtracting?

[@MathematicsVSA]

Train P and Train Q are moving in the same direction. To determine how long it takes for Train P (or Q) to completely pass the other, we need to calculate how quickly the gap between them is closing, which is given by their relative speed.If you used only the speed of one train, you would not account for the fact that the second train is also moving in the same direction. This would incorrectly assume that the second train is stationary, which is not the case.

[@truptiramteke6050]

Thanks a lot sir for explaining this in very easier way.....🙏

[@sagars2830]

Thank you for this video and very helpful tp so much 🙏🙏🙏🙏🙋🙋👏👏👏

[@rg_dinesh_yt1862]

thanks for simple tricks

[@saffushaikh5117]

Ur solving problems method is very good...I understand easily when this video i see ..thank you sir ur video

[@pavankalyanmodugu994]

Excellent sir I am thinking that why u didn't get more subscribers U r way of explaining is awesome

[@devib1997]

Very good explanation, you covered all most all types. Thank you so much

[@rutukeshkashid5058]

all explanation and also problem are good bt i have problem in question no 7 if in that we take the speed of first and second person are 4.5 and 5.4 kmph and to overtake them in 8.4 and 8.5 then tell me length of train direction are same

[@seemarani9062]

I understand this topic very well

[@maverick2645]

Need more videos of u sir it's a request

[@shyamchawla951]

sir apki english superb h😊

[@prashantsavant4938]

Two stations A and B are 110 km apart on a straight line. One train starts from A at 7 a.m. and travels towards B at 20 kmph. Another train starts from B at 8 a.m. and travels towards A at a speed of 25 kmph. At what time will they meet?

[@laharishkaranamakil9615]

prashant savant 10hours

[@divyanshu5920]

The answer will be 10 a.m.

[@gouravdas6871]

After 2.4 hr

[@Anushkacodinghub86979]

Such a nice explanation sir thank you

[@Saidarshan9010]

Q.3 answer T =20sec

[@rajeshreddy4400]

sir i had a doubt in question no 4 i.e you considered ST1=x and ST2=x+14 but we can also consider as ST1=X-14 and ST2=x so in case 1 you got answer as 4.5 but in case 2 i was getting answer as 18.5

[@Anas_Ansari421]

Bro case1 me st1 ko x liya he na so 4.5 aya or case 2 me tum st2 ko x liya he jo ki 18.5 or st1=x-14 karo tb 4.5 ayega na

[@vimala7830]

very good explanation sir. Thanks a lot.

[@masterdevops6660]

Kindly use blue pen, but ur contents are of different level,keep on going . Wish u success

[@vibhornautiyal2973]

24:21 Why we have not taken Train 1 speed (X-14)12?

[@rathnaacharya959]

Thank you so much for your effort sir...it's very useful sir🌹

[@mousumisahoo8022]

Sir where can I get quantitive aptitude mock practice papers?.....sir plz reply 🙏........

[@allcompetativeexams2987]

Sir, upload videos on dice 🎲 and cubes

[@silambuarasan567]

clarity explanation..tank you..

[@immensives147]

Sir last question 9 will have 30 sec answer not 60 sec, i think so, bc you added L+L but to cross it need only L distance with respect to relative speed if both trains start same time

[@viralcrowd1100]

Thank u..the video is very helpful for me...appreciate u r work..

[@CareerRideOfficial]

You're welcome, Kashyap! Stay connected:)

[@juhainasuhail6264]

Two identical trains A and B running in opposite directions at same speed take 2 minutes to cross each other completely. The number of bogies of A is increased from 12 to 16 and B is decreased from 12 to 10. How much more time would they require to cross each other? sir,will u pls do a video on this problem

[@bharathram7245]

130 seconds or 2:10 seconds 😊😊

[@vishnusurendran9326]

on problem 3 easy method total length 700 find in 100 ms so 56/7 =8 so total length 250+150=400 so that 4*8=32

[@Jo34151]

56/700*400=32sec

[@padmajab1058]

thank u soooomuch. we need these type deap questions

[@nagamaniadari1447]

Don't u know the spelling of deep

[@jasminepasha2416]

Good teaching sir but please start with easy sums and then move to complex ones.

[@sakshikumari4741]

Thank you sir,i cracked tcs digital qith good marks thnk u

[@CareerRideOfficial]

Glad to know. Congrats and All the best! :)

[@nishagawande7302]

I always come up to this channel for any of my doubts.. Thank you so much for being such a helping hand..😊

[@lolubom6721]

I am in class 10th!! But but but! I understood everything 😍

[@nikita_singh_]

A big thanks to you sir.

[@radhikaagarwal5502]

Thankyou for such wonderful explanation.

[@parvathiprasanna162]

Sir question 5 can also solve Let's us take x+40 for t1 X for t2 S1=120 S2=100 ila cheyocha

[@dxmragegaming8715]

hat is 14 km hr faster not 40

[@jayshivray24]

4th was easy hot relativity. 12= 276/x+x+14 Just one formula

[@sureshhh8082]

This guy is insane❤🎀

[@shaikchaman985]

Thanks for your help . It's very useful for me

[@erfanahadbhat2198]

Thanks sir Really helpful. Thanks

[@Usersandyss]

You teach so good

[@nagasirisha7694]

Thank you sir so nice of you sir🤗🤗

[@RacharlaSaiKumar]

sir in problem no 6 if train a takes t hours train b takes t+0.5 hours because train b started half an hour late sir can u clarrify it

[@sonaliranmale6412]

Plz reply

[@sammitrane4493]

It is like train a will travel for time T and since it started at 8AM and train b will travel for time T-0.5 since it started late so it will travel half hour less to reach that point.

[@RacharlaSaiKumar]

@@sammitrane4493 yes, I got u tq

[@lovedeepsingh1793]

Q 5 Time is same thus T=T D/S =D/S (D+40) / 120 = (D / 100) D=200 D+40 => 200 + 40 =240 D=200 Total Distance 240 + 200 =440

[@artipandey7624]

U r best sir.i like your videos,u explain all the topic in proper manner.thank u so much

[@simplify1411]

Please make videos for english for competitive exams

[@leelaginakunta556]

You are so grear sir...

[@heart-vision]

1) A train 125 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 10 seconds. The speed of the train is: pls solve this sir

[@p_p21]

length of train =125m Speed of man=5 km/hr Time=10 sec the speed of the train related to man = 125/10*18/5 =45 km/hr Then speed of train in the same direction of man be x km then, (X-5) = 45 X= 45+5 = 50 km/hr

[@benudhar_majhi]

@@p_p21 What is this 18/5?

[@ishwarideshmukh4079]

@@benudhar_majhi conversion to standard value

[@intellectualbanker3788]

Plz upload video on pipe questions

[@soumikghoshal940]

thank you for this simple tips

[@anaghasr3648]

In problem 4. Why dont you take the speed as x-14 and x ??