A bus 150 m long is moving with a speedof 90 km/h . In what time shall it cross 850 m long bridge ?

Explanation

Given : `{:("Length of"),("the bus"):}}= 150`
Speed ` = 90 km//h = (90xx5)/(18)`
25 m/sec
` {:("Length of"),("the bridge"):}}= 850 m
{:("Total distance"),("To be covered"):}}= 150 + 850 = 1000m`
Formula :
Velocity `= ("Distance")/("Time")`
Time `= ("Distance")/("Velocity") = (100)/(25)`
= 40 second