A train running at a speed of 36 km/h passes an electric pole in 15 seconds. In how many seconds will the whole train pass a 380-meter long platform?	Choose the correct choice from the following options:
A) 47  B) 49  C) 51  D) 53  E) 55
Let the length of the train be x meters.   When a train crosses an electric pole, the distance covered is its own length x.   speed = 36 km/h = 36000 m / 3600 s = 10 m/s   x = 15 * 10= 
<gadget id="calculator">15 * 10</gadget>
<output>150</output>
150 m.   The time taken to pass the platform= (150 +380)/ 10= 
<gadget id="calculator">(150 +380)/ 10</gadget>
<output>53</output>
53 seconds   The answer is 53.
<result>D</result>
A train running at a speed of 36 km/h passes an electric pole in 15 seconds. In how many seconds will the whole train pass a 380-meter long platform?