প্রশ্ন সংশোধন করুন
প্রশ্ন:
A train passes a platform in 40 sec and a woman standing on the platform in 30 sec . the speed of the train is 108 km / hr, what is the length of the platform ?
A train passes a platform in 40 sec and a woman standing on the platform in 30 sec . the speed of the train is 108 km / hr, what is the length of the platform ?