In April 2007, my country's train speed was raised for the sixth time. The speed of a train on a certain main line increased from an average of 160 kilometers per hour to 40 kilometers. What percentage of the original train speed was this time?
2007年4月，我国火车第六次提速，某火车干线上火车速度从平均每小时160千米提速40千米，这时火车速度是原来的百分之几？
<gadget id="calculator">160 + 40</gadget>
<output>200</output>

<gadget id="calculator">200 / 160</gadget>
<output>5/4 = around 1.25</output>

<result>5/4 = around 1.25</result>