The cost price of a certain toy car last year was 200 yuan. If it is sold at 80% of the price, it can get 20% of the profit. Due to the cost reduction this year, it can still get 50% of the profit if it is sold at 70% of last year’s price. How much does a toy car cost?
某种玩具汽车去年的成本价为200元，若按定价的80%出售，能获得20%的利润，由于今年降低成本，按去年定价的70%出售，仍能获得50%的利润，今年这种玩具汽车的成本是多少元？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">200 * (1/5)</gadget>
<output>40</output>

<gadget id="calculator">200 + 40</gadget>
<output>240</output>

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">240 / (4/5)</gadget>
<output>300</output>

<gadget id="calculator">70 / 100</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">300 * (7/10)</gadget>
<output>210</output>

<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 + (1/2)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">210 / (3/2)</gadget>
<output>140</output>

<result>140</result>