A and B start to process the same part at the same time. A processes 25 parts per hour, and B processes 20 parts per hour. After working for a period of time, A processes 35 more parts than B. How many parts did they jointly process?
甲乙两人同时开始加工同一种零件，甲每小时加工25个，乙每小时加工20个，工作一段时间后，甲比乙多加工35个零件，这时他们共同加工了多少个零件？
<gadget id="calculator">25 + 20</gadget>
<output>45</output>

<gadget id="calculator">25 - 20</gadget>
<output>5</output>

<gadget id="calculator">35 / 5</gadget>
<output>7</output>

<gadget id="calculator">45 * 7</gadget>
<output>315</output>

<result>315</result>