Question

A 100 metre long train crosses a 300 metre long Bridge at a speed of 90 kilometre per hour how much time will it take to cross the bridge completely​

Answer 1

plz mark me as brainliest

Answer 2

Answer:

see according to the question we have to find the the time

225 hours

Explanation:

the formula is Speed = Distance / time

let the time be 't' then,

the distance covered = the length of the train + the length of the bridge

distance = 100 m + 300 m = 400 m

thus the distance is 400 m

speed is given which is 90 km/ hr

then put the values to the formula

90km/hr = 400 m / time

first of all change the unit of m in distance

400 / 1000 km= 0.4 km

90km /hr = 0.4km / time

90/ 0.4 = time

225 hours = time