 <translate> Speed of the train in metres/sec = 72000/3600 = 20
Distance travelled by train to cross the platform = 30 * 20 = 600 = Length of train + Length of platform
Distance travelled by train to cross the man = 19 * 20 = 380 = Length of train
Length of platform = 600 - 380 = 220
The final answer: (A). <yor> Iyara ọkọ̀ ojú irin ní mita/ìkejì = 72000/3600 = 20 Ìjìnlẹ̀ tí ọkọ̀ ojú irin rin láti kọjá orí òpó = 30 * 20 = 600 = Gígùn ọkọ̀ ojú irin + Gígùn orí òpó Ìlàjì tí ọkọ̀ ojú irin rin láti kọjá ọkùnrin náà = 19 * 20 = 380 = Gígùn ọkọ̀ ojú irin Gígùn orí òpó = 600 - 380 = 220 Ìdáhùn tó ṣe kedere ni pé: (A). 