a jogger running at 9 km / hr along side a railway track is 240 m ahead of the engine of a 140 m long train running at 45 km / hr in the same direction. in how much time will the train pass the jogger?
Choose the correct choice from the following choices:
A) 28 sec  B) 16 sec  C) 38 sec  D) 18 sec  E) 17 sec
<gadget id="calculator">240 + 140</gadget>
<output>380</output>

<gadget id="calculator">45 - 9</gadget>
<output>36</output>

<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">36 / 2</gadget>
<output>18</output>

<gadget id="calculator">5 / 18</gadget>
<output>5/18 = around 0.277778</output>

<gadget id="calculator">36 * (5/18)</gadget>
<output>10</output>

<gadget id="calculator">380 / 10</gadget>
<output>38</output>

<result>C</result>
a jogger running at 9 km / hr along side a railway track is 240 m ahead of the engine of a 140 m long train running at 45 km / hr in the same direction. in how much time will the train pass the jogger?
divide(add(240, 140), multiply(subtract(45, 9), divide(divide(const_10, const_2), divide(subtract(45, 9), const_2))))
"speed of train relative to jogger = 45 - 9 = 36 km / hr . = 36 * 5 / 18 = 10 m / sec . distance to be covered = 240 + 140 = 380 m . time taken = 380 / 10 = 38 sec . answer : c"