in what time will a train 110 m long cross an electric pole, it its speed be 128 km / hr? Choose the correct choice from the following answers:  A) 2.5 sec  B) 2.9 sec  C) 3.1 sec  D) 8.7 sec  E) 8.5 sec
<gadget id="calculator">10 / 36</gadget>
<output>5/18 = around 0.277778</output>

<gadget id="calculator">128 * (5/18)</gadget>
<output>320/9 = around 35.555556</output>

<gadget id="calculator">110 / (320/9)</gadget>
<output>99/32 = around 3.09375</output>

<result>C</result>
in what time will a train 110 m long cross an electric pole, it its speed be 128 km / hr?
divide(110, multiply(128, const_0_2778))
"speed = 128 * 5 / 18 = 36 m / sec time taken = 110 / 36 = 3.1 sec . answer : c"