car drives from point A to point B at 100 kilometers per hour, and arrives in (9/2) hours. If it is to arrive (3/2) hours earlier, how many kilometers per hour should it travel?
一辆轿车从A地开往B地，每小时100千米，经过(9/2)小时到达，如果要提前(3/2)小时到达，每小时应该行多少千米？
<gadget id="calculator">9 / 2</gadget>
<output>9/2 = around 4.5</output>

<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">(9/2) - (3/2)</gadget>
<output>3</output>

<gadget id="calculator">(9/2) / 3</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">100 * (3/2)</gadget>
<output>150</output>

<result>150</result>