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

I have doubt in 6 question two moving objects is relative Speed but here you didn't consider relative seed

Q 6 ] kuch samjha nhi ..👎

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

Sir in question 6 Train B time should be T+0.5 as train A starts 30 minutes earlier and B 30 minutes late. Still confused 🤔

A pathetic teacher doesn't know how to teach and I can't understand the way he solve the problems and their solutions this video is time waste

Sir would you please correct that 6 th problem that time is 1.5 hrs correct it sir

Best explanation till now

All the best

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

Apka kuch samj nahi ata hai.... Kya krta hai kya nai.... I leaved your video... Sorry sir....

I couldn't understand the question 8

Plz make a video on true discount and banker's discount

Arigato....sir

M AA

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😅😅😅

Is this useful for nata exam

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

I didn't understand when two train moving same direction then the distance will be not L + L , they will more then 2L as they are travelling smae time in the one direction so also covering some distance, what about that distance .. please tell me this one any one .. please.

Please make video on clocks

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

Sir Hindi me video chiye

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

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

Have you travelled to Tirupati?

U made it so difficult it bro

Thankyou sir❤️🙌

A big thanks to you sir.

Superb explanation with reasonable logics👌👌

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

Great video ! But 6th sum is confusing sir.. If train 2 started 30 mins after train 1 ,how will it take less time than train 1 as (t-0.5) ? Please explain

Thank you ♥️

question 6 was not well explained. why should the difference of time be half hour when the speeds are different

Sir in 4th problem if we want to find faster train speed then how to calculate..

Best Playlist for quant

Sir 7th question mai (88 - 16) ×40 yaha par sir 88-16 = 72 hoga na
Aap syd galat kar diye hai

Such a nice explanation sir thank you

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

Sir for question no. 6 if the train B late for 30 min then time would be T+0.5 because it takes 30 min extra.I don't understand this equation. Please clear my doubt sir😐

In question no 7, you converted second to hour by 36/360 but you called before that sec to hr converted by 18/5. Why 😇

I don't think that the answer of last question is correct
I a train crosses its own distance in 6 sec then why it is needed to take 60 sec to cross twiser than its length that too other tain is also traveling almost same speed. It needs half of the time to cross the pole approximately.

Thank you sir video was so helpful❤

very good explanation sir. Thanks a lot.

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

5th Question
D1 = x+40
D2 = x
Total Distance = x+40 + x

T=T

D1/S1=D2/S2

x+40/120 = x/100

x+40/6 = x/5

5x+200 = 6x

x=200

Total Distance = 200 + 40 +200
=440

Need more videos of u sir it's a request

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