A. 14 sec.
B. 15 sec.
C. 16 sec.
D. 17 sec.
Two trains 240 metres and 270 metres in length are running towards each other on parallel lines, one at the rate of 60 kmph and another at 48 kmph. How much time will they take to cross each other?
Two trains 240 metres and 270 metres in length are running towards each other on parallel lines, one at the rate of 60 kmph and another at 48 kmph. How much time will they take to cross each other?
A. 14 sec.
B. 15 sec.
C. 16 sec.
D. 17 sec.
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17 secs
d=240+270=510m
s=60+48=108km/hr
t=d/s
t=510/(108*(5/18))
t=17sec
Relative speed =(60+48) kmph
=108kmph =108*5/18m/s
= 6*5 =30 m/s
Running Towards each other
Hence, 240+270=510 m
And hence, required Time= Distance/Speed
=510/30 =17sec
17sec
17s