প্রশ্ন সংশোধন করুন
প্রশ্ন:
A train takes 18 sec to pass completely through a station 162m long and 15 seconds through another station 120m long.The length of the train-
A train takes 18 sec to pass completely through a station 162m long and 15 seconds through another station 120m long.The length of the train-