what is the length of a bridge ( in meters ), which a train 166 meters long and travelling at 45 km / h can cross in 40 seconds? Answers
A) 310  B) 318  C) 326  D) 334  E) 342
<gadget id="calculator">10 / 36</gadget>
<output>5/18 = around 0.277778</output>

<gadget id="calculator">45 * (5/18)</gadget>
<output>25/2 = around 12.5</output>

<gadget id="calculator">(25/2) * 40</gadget>
<output>500</output>

<gadget id="calculator">500 - 166</gadget>
<output>334</output>

<result>D</result>
what is the length of a bridge ( in meters ), which a train 166 meters long and travelling at 45 km / h can cross in 40 seconds?
subtract(multiply(multiply(45, const_0_2778), 40), 166)
"speed = 45 km / h = 45000 m / 3600 s = 25 / 2 m / s in 40 seconds , the train can travel 25 / 2 * 40 = 500 meters 500 = length of train + length of bridge length of bridge = 500 - 166 = 334 meters the answer is d ."