Question

Two trains 300m and 200 m long, moving at the speed of 35 km/hr and 25 km/hr respectively in opposite direction. How long would it takevthem to pass each other?​

Answer 1

Answer:

train A = 30.86 sec

train B = 28.84 sec

Step-by-step explanation:

TRAIN A's Given conditions,

Distance traveled by train = 300m

Speed traveled by train A = 35km/h

Converting speed from M.K.S system to C.G.S system

= 35×5÷18

= 175÷8

= 9.72m/s

Time taken by Train A= Distance÷speed

= 300÷9.72

=30.86 sec

TRAIN B's Given conditions,

Distance traveled by Train B = 200m

Speed traveled by Train B = 25km

Converting speed from M.K.S to C.G.S system

= 25×5÷18

= 125÷18

= 6.94m/s

Time taken by Train B = 200÷6.94

=28.84sec

So, Time taken by Train A = 30.86sec

Time taken by Train B = 28.84sec.