Vehicles A and B plan to transport 50 tons of goods, but the result is that vehicle A exceeds the plan by 20%, and vehicle B exceeds the plan by 30%. The two vehicles actually transport 62 tons of goods. How many tons did Car A originally plan to transport?
甲、乙两车计划运输50吨货物，结果甲车比计划超额20%，乙车比计划超额30%，两车实际运货62吨．甲车原计划运多少吨．
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">50 * (6/5)</gadget>
<output>60</output>

<gadget id="calculator">62 - 60</gadget>
<output>2</output>

<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">(3/10) - (1/5)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">2 / (1/10)</gadget>
<output>20</output>

<gadget id="calculator">50 - 20</gadget>
<output>30</output>

<result>30</result>