Question

Annabelle is taking the train to see her boyfriend on Valentine's day! The train is 100 meters long and it takes 30 seconds to cross a 400m bridge. What speed is the train going at

Answer 1

the question is wrong Annabelle is taking to train . that will be taking in train to see

Answer 2

Given:

Length of the train = 100 m.

Length of the bridge = 400 m.

Time taken by train to cross the bridge = 30 seconds.

Solution:

Total distance covered by the entire train = 100 + 400 = 500 m.

So, the train travels 500 m in 30 seconds.

Speed of the train = Distance / Time taken = 500 / 30 =  16.66 m/s

In terms of km/hr,

Speed = 500/30 * ( 3600 / 1000) = 500/30 * 18/5 =  60 km/hr