A book is priced at 48 yuan, and you can make a profit of 60% after selling it. If you sell it at 30% off the price, how much profit can you make?
一本书定价48元，售出后可获利60%，如果按定价的七折出售，可盈利多少元．
<gadget id="calculator">70 / 100</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">48 * (7/10)</gadget>
<output>168/5 = around 33.6</output>

<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 + (3/5)</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">48 / (8/5)</gadget>
<output>30</output>

<gadget id="calculator">(168/5) - 30</gadget>
<output>18/5 = around 3.6</output>

<result>18/5 = around 3.6</result>