A train 360 m long is running at a speed of 90 km/hr. In what time will it pass a bridge 140 m long? Choose the correct choice from the following answers:	A) 40 sec	B) 29 sec	C) 26 sec	D) 20 sec	E) 34 sec
Speed = 90 * 5/18= 
<gadget id="calculator">90 * 5/18</gadget>
<output>25</output>
25 m/sec   Total distance covered= 360 + 140= 
<gadget id="calculator">360 + 140</gadget>
<output>500</output>
500 m   Required time= 500 * 1/25= 
<gadget id="calculator">500 * 1/25</gadget>
<output>20</output>
20 sec   Answer: 20 sec
<result>D</result>
A train 360 m long is running at a speed of 90 km/hr. In what time will it pass a bridge 140 m long?