When the No. 115 bus arrives at Changying Station, (2/5) passengers get off, and another 25 people get on the bus. At this time, the number of passengers on the bus is 10% more than before. How many people were there in the car?
115路公交车到常营站时，有(2/5)的乘客下车，又有25人上车，这时车上的乘客比原来多10%．原来车上有乘客多少人？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(2/5) + (1/10)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">25 / (1/2)</gadget>
<output>50</output>

<result>50</result>