A train running at 25 km/hr takes 50 seconds to pass a platform. Next, it takes 12 seconds to pass a man walking at 5 km/hr in the same direction. Find the length of the train and that of the platform. Select:
A) a) 200/3m175/3m
B) b) 36m178m
C) c) 50m45m
D) d) 100/3 m200/3
E) e) none of these
Hi Math gurus correct me if I am wrong. I wondered i reached the answer mentioned here i.e 100m and 25m   lets solve it   To find out length of train the train, which is must cover the static point of the man as well as the distance covered the man during 12 sec.   The man covered the distance during 12sec is  5*5/50*12= 
<gadget id="calculator"> 5*5/50*12</gadget>
<output>6</output>
6m so the train covered a distance in 12 sec= 25*5/50*12= 
<gadget id="calculator">25*5/50*12</gadget>
<output>30</output>
30   so the length of the train(Lt) is  6+30= 
<gadget id="calculator"> 6+30</gadget>
<output>36</output>
36m   Now crossing the platform means length of train+length of platform(Lt+p)= 50*25*5/50= 
<gadget id="calculator">50*25*5/50</gadget>
<output>125</output>
125m Now the length of platform (Lp) is= 125-36= 
<gadget id="calculator">125-36</gadget>
<output>89</output>
89m   So answer is 36m and 89m Must beb) 36m178meven though its mentioned 36m and 178m thinking so typo mistake...........
<result>B</result>
A train running at 25 km/hr takes 50 seconds to pass a platform. Next, it takes 12 seconds to pass a man walking at 5 km/hr in the same direction. Find the length of the train and that of the platform.