Question

A train running at a speed of 108 km/hr crossed a 170 m long platform in 11 seconds. In how much time will it cross another platform of 110 m? 1) 6 sec. 2) 7 sec. 3) 8 sec. 4) 9 sec. 5) 10 sec.

army you don't ask sorry
I have so many friends why they don't answer my question
I receive answer 3 hours or at night ti e ​

Answer 1

Answer:

let the length of the train be 'x'm

speed of train =108 x 5/18 =30m/sec.

time taken to cross platform = sum of lengths of train

11=(x+170)30

x= 330-170 = 160

taken to cross a 110 m long

platform = (160+110) / 30 = 270/30= 9sec.

hope it helps you dear Army Sara

Answer 2

refer the attachment hope its help u

its too sad pls

refer 3rd attachment