A bullet train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the bullet train is 54 km/hr, what is the length of the platform? Options
A) 210 cm	B) 120 cm	C) 340 cm	D) 240 cm	E) 330 cm
240 cm   240 cm
<result>D</result>
A bullet train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the bullet train is 54 km/hr, what is the length of the platform?