A train 360 m long is running at a speed of 45 kmph.In what time will it pass a bridge 140 m long?	Choices
A) 40 sec	B) 42 sec	C) 45 sec	D) 48 sec	E) 49 sec
speed of the train 45* 5/18 = 25/2 m/sec   time = (360+140)/25/2   = 500*2/25= 
<gadget id="calculator">500*2/25</gadget>
<output>40</output>
40sec   40 secNSWER:40 sec
<result>A</result>
A train 360 m long is running at a speed of 45 kmph.In what time will it pass a bridge 140 m long?