A train is 357 meter long is running at a speed of 42 km/hour. In what time will it pass a bridge of 137 meter length?
Pick one:	A) 44	B) 42.343	C) 50	D) 39.252	E) 27.851
Speed = 42 Km/hr = 42*(5/18) m/sec = 35/3 m/sec   Total distance = 357+137= 
<gadget id="calculator">357+137</gadget>
<output>494</output>
494 meter   Time= Distance/speed   = 494 * (3/35) = 42.343 seconds.   Answer: 42.343
<result>B</result>
A train is 357 meter long is running at a speed of 42 km/hour. In what time will it pass a bridge of 137 meter length?