The cost price of a suit of clothing is 50 yuan, and the retailer buys it from the manufacturer at the ex-factory price and then sells it. If the profit rate of the manufacturer is 20%, and the profit rate of the retailer is 30%, then the selling price of this suit is: how much is it.
一套服装的成本价是50元，零售商从生产厂家以出厂价买入，然后卖出．如果生产厂家的利润率为20%，零售商的利润率为30%，则这套服装的售价为：多少元．
<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">30 / 100</gadget>
<output>3/10 = around 0.3</output>

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

<gadget id="calculator">50 * (6/5) * (13/10)</gadget>
<output>78</output>

<result>78</result>