The length of the swimming pool is 60 meters. After the expansion, the length of the swimming pool remains the same, but the width increases by 10 meters. The area of the swimming pool after expansion is 30% larger than the original area.
游泳池长60米，扩建后的游泳池长不变，宽增加10米，游泳池扩建后的面积比原来增加了30%，扩建后的面积是多少平方米？
<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">60 / (3/10)</gadget>
<output>200</output>

<gadget id="calculator">1 + (3/10)</gadget>
<output>13/10 = around 1.3</output>

<gadget id="calculator">10 * 200 * (13/10)</gadget>
<output>2_600</output>

<result>2_600</result>