The toy factory manufactures a batch of toys. The original plan was to manufacture 300 pieces per day, but it was completed in 14 days. In fact, 50 more toys were produced per day. How many days will it actually take to complete?
玩具厂制造一批玩具，原计划每天制造300件，14天完成，实际每天多制造50件．实际多少天就能完成？
<gadget id="calculator">300 + 50</gadget>
<output>350</output>

<gadget id="calculator">14 / 350</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">300 * (1/25)</gadget>
<output>12</output>

<result>12</result>