Question

hundred metres long train moving hundred metres per minute passes through a tunnel of 100 M in length how long will it take to pass the tunnel

Answer 1

it will take two mins for the train to croos the tunnel  

length of train = 100 m
length of tunnel = 100m 
seed = 100m / min
time taken = 100 + 100 / speed 
                    = 200 /100 
                      = 2 mins 

hope u like this ans 

brainliest please