A batch of 60 parts has been processed, and the total number of parts in this batch is 2.5 times that of the rest. How many parts are there in total?
加工一批零件已经完成60个，这批零件总数是剩下的2.5倍，这批零件共有多少个．
<gadget id="calculator">2.5 - 1</gadget>
<output>1.5</output>

<gadget id="calculator">60 / 1.5</gadget>
<output>40</output>

<gadget id="calculator">2.5 * 40</gadget>
<output>100</output>

<result>100</result>