Question

A train 50m long passes over bridge 250m long at the rate of 10km/h how long will it take to pass over bridge​

Answer 1

length of train = 50m

length of bridge =250m

therefore total length = 250+50= 300m

therefore total distance = 300m= 0.3km

speed of train =10km/h

$speed = \frac{distance}{time}$

therefore

$time = \frac{distance}{speed}$

time =

$\frac{0.3}{10}$

time=

$= \frac{3}{100} hours$

time = 3/100× 3600

time = 108secs

Answer 2

.so time taken is 72 sec i.e.1 minute and 12 sec.