2 trains in same direction at 50km/hr,32 km/hr.A man in slower train observes 15 sec elapse before the faster train completely passed by him what is length of faster train? Answers:
A) 65 meters
B) 75 meters
C) 85 meters
D) 95 meters
E) 55 meters
relative speed= 18k/hr= 5 m/sec   distance covered= length of faster train= 5*15= 
<gadget id="calculator">5*15</gadget>
<output>75</output>
75 meters   ANSWER:75 meters
<result>B</result>
2 trains in same direction at 50km/hr,32 km/hr.A man in slower train observes 15 sec elapse before the faster train completely passed by him what is length of faster train?