সব প্রশ্নে ফিরে যান
Math
A jogger running at 9 km/hr alongside a railway track is 240 meters ahead of the engine of a 120 meters long train running at 45 km/hr in the same direction. In how much time will the train pass the jogger?
A) 3.6 sec
B) 18 sec
C) 36 sec
সঠিক উত্তর
D) 72 sec