Question

A bus 300m long travelling at speed of 54km\hr crosses a bridge in 30 sec

Answer 1

Answer:

150m

Step-by-step explanation:

54km/hr = 54*5/18=15m/s

Length of bus =300m

Distance travelled at 15m/s in 30 seconds = 15×30=450m

Length of bridge = 450m-300m

=150m

The length of the bridge is 150m

Answer 2

$</p><p>\tt{\pink{\huge{Hello!!! }}}$

$</p><p>\tt{\red{Given \: - }}$

Length of Bus = 300m.

Speed = 54 kmph = 15 m/s

In 30 S,

Distance = 450 m.

Length of road = 450 m - 300 m = 150 m.