Download Aptitude Crack
img not found img not found

Problems on Trains - General Aptitude

Q1:

A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?

A 40 sec

B 42 sec

C 45 sec

D 48 sec

ANS:A - 40 sec

Formula for converting from km/hr to m/s:   X km/hr = X x 5 m/s.
18
 
Therefore, Speed = 45 x 5 m/sec = 25 m/sec.
18  2
Total distance to be covered = (360 + 140) m = 500 m.
Formula for finding Time= Distance
Speed
 
Required time = 500 x 2 sec = 40 sec.
25