A car drives from place A to place B. It travels the whole distance (1/4) in the first hour, and the remaining 40% in the second hour. At this time, there are still 90 kilometers left. How many kilometers?
一辆汽车从甲地开往乙地，第一小时行了全程的(1/4)，第二小时行了余下的40%，这时还剩下90千米，从甲地到乙地有多少千米？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(3/4) * (2/5)</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">1 - (1/4) - (3/10)</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">90 / (9/20)</gadget>
<output>200</output>

<result>200</result>