1.  A train moves with a speed of 108 km/hr.Its speed in meters per second is?


10.8m/sec
18 m/sec
30 m/sec
38.8 m/sec


Answer

 Option

108 km/hr= (108*5/18) = 30m/sec

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2.  A speed of 14 meters per second is the same as?


28 km/hr
46.6 km/hr
50.4 km/hr
70 km/hr


Answer

 Option

14 m/sec = (14*18/5) km/hr = 50.4 km/hr

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3.  Train P overtakes train Q double its length and traveling at half of speed of train P in 36 seconds. Train P crosses train R going in the opposite direction at double its speed in 8 seconds. If the speed of train P is 72 km/ph then the length of train R is?


330 m
360 m
390 m
420 m


Answer

 Option

For Train P length = L, Speed = 72 kmph For train Q length = 2L, Speed = 36 kmph (L + 2L)/(72 - 36)X5/18 L= 120 meter For train R Speed = 2 X 72 = 144 kmph & length = x meter (120 + x) / (144 + 72)X5/18 = 8 x = 360 meter

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4.  Two trains of equal length are running on parallel lines in the same direction at 46 km/hr and 36 km/hr.The faster train passes the slower train in 36 seconds. The length of each train is?


50 m
72 m
80 m
82 m


Answer

 Option

Let the length of each of train be X meters, Then distance covered = 2x meters. Relative speed = (46-36) km /hr = ( 10*5/18) m/sec = (25/9) m/sec 2x/36= 25/9 = 2x =100 = x= 50

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5.  A train takes 18 seconds to pass completely through a station 162 meter long and 15 seconds through another station 120 m long.The length of the train is?


70m
80m
90m
100m


Answer

 Option

Let the length of the train be x meters x+162/18 = x+120/15 =15(x+162) = 18(x+120) = x= 90 m

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