how long does a train 110 m long running at the speed of 72 km / hr takes to cross a bridge 132 m length? Answers: A) 12.6 B) 12.0 C) 12.1 D) 12.3 E) 12.2
<gadget id="calculator">110 + 132</gadget>
<output>242</output>

<gadget id="calculator">10 / 36</gadget>
<output>5/18 = around 0.277778</output>

<gadget id="calculator">72 * (5/18)</gadget>
<output>20</output>

<gadget id="calculator">242 / 20</gadget>
<output>121/10 = around 12.1</output>

<result>B</result>
how long does a train 110 m long running at the speed of 72 km / hr takes to cross a bridge 132 m length?
divide(add(110, 132), multiply(72, const_0_2778))
"speed = 72 * 5 / 18 = 20 m / sec total distance covered = 110 + 132 = 242 m . required time = 242 / 20 = 12.1 sec . answer : b"