Question

A train passes over a bridge. If the speed of the train is 30 m/s and the train takes 20
seconds to cross the bridge, find the length of the bridge when the length of the train is 120
m.
(A) 400 m (B) 600 m
(C) 480 m (D) 100 m

Answer 1

Answer:

where is the answer of question

Step-by-step explanation:

number b600 metres

Answer 2

Answer:

C.480

Step-by-step explanation:

the total distance = (30×20)m=600m

the train's lenth=120

the bridge length =(600-120)=480