After a bus arrives at the station, (1/4) of the passengers get off, and 12 people get on the bus. At this time, the number of passengers on the bus is 5% more than before. How many people are there on the bus now?
一辆客车到达车站后有(1/4)的乘客下车，又上车12人，这时车上的乘客比原来多5%，车上现在有多少人？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">(1/4) + (1/20)</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">12 / (3/10)</gadget>
<output>40</output>

<gadget id="calculator">1 + (1/20)</gadget>
<output>21/20 = around 1.05</output>

<gadget id="calculator">40 * (21/20)</gadget>
<output>42</output>

<result>42</result>