processing factory processes a batch of parts, and the original plan is to complete the task within 15 days. Actually, 10 more parts are processed every day than the original plan, and the task is completed 2 days ahead of schedule. How many parts are there in total?
某加工厂加工一批零件，原计划15天完成任务．实际每天比原计划每天多加工10个零件，结果提前2天完成了任务，求这批零件一共多少个？
<gadget id="calculator">1 / 13</gadget>
<output>1/13 = around 0.076923</output>

<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">(1/13) - (1/15)</gadget>
<output>2/195 = around 0.010256</output>

<gadget id="calculator">10 / (2/195)</gadget>
<output>975</output>

<result>975</result>