Question

a train running at a speed of 36km/hr takes 30 seconds to pass platform and 15 seconds to pass a man walking at 6km/hr in the opp direction in which train is going then the length of the platform?​

Answer 1

Answer:

As the trains travel in opposite direction then

Relative speed=(45+36)km/hr=(81×

18

5

)m/sec=(

18

405

)m/sec

∴ length of the faster train=

18

405

×8=180

Answer 2

Answer:

The correct answer of this question is $4500$

Step-by-step explanation:

Given - A train running at a speed of 36km/hr takes 30 seconds to pass platform and 15 seconds to pass a man walking at 6km/hr in the opp direction.

To Find - Find the  length of the platform?​

Speed of the train is - 36 km/hr

$36$ × $\frac{5}{18}$

= $2$ × $5$ =  $10m/sec$

The time $30 sec$

Distance  = length of the platform × time

$15$ × $30$ = $4500$

#SPJ2