A train is 360 meter long is running at a speed of 90 km/hour. In what time will it pass a bridge of 140 meter length?	Choose the correct choice:	A) 87	B) 69	C) 40	D) 72	E) 20
Speed = 90 Km/hr = 90*(5/18) m/sec = 25 m/sec   Total distance = 360+140= 
<gadget id="calculator">360+140</gadget>
<output>500</output>
500 meter   Time= Distance/speed   = 500 * (1/25)= 
<gadget id="calculator">500 * (1/25)</gadget>
<output>20</output>
20 seconds   Answer: 20
<result>E</result>
A train is 360 meter long is running at a speed of 90 km/hour. In what time will it pass a bridge of 140 meter length?