in what time will a train 175 m long cross an electric pole, it its speed be 144 km / hr?
Pick one: A) 2.58 sec B) 2.91 sec C) 4.37 sec D) 2.9 sec E) 1.8 sec
<gadget id="calculator">10 / 36</gadget>
<output>5/18 = around 0.277778</output>

<gadget id="calculator">144 * (5/18)</gadget>
<output>40</output>

<gadget id="calculator">175 / 40</gadget>
<output>35/8 = around 4.375</output>

<result>C</result>
in what time will a train 175 m long cross an electric pole, it its speed be 144 km / hr?
divide(175, multiply(144, const_0_2778))
"speed = 144 * 5 / 18 = 40 m / sec time taken = 175 / 40 = 4.37 sec . answer : c"