There were 325 male and female students in a certain grade. In the new school year, there are 25 male students and 5% female students. The total number of students increases by 16. How many male students are there?
某年级原有男、女生共325人，新学年男生增加25人，女生减少5%，总人数增加16人，那么现有男生多少人．
<gadget id="calculator">25 - 16</gadget>
<output>9</output>

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

<gadget id="calculator">9 / (1/20)</gadget>
<output>180</output>

<gadget id="calculator">325 - 180</gadget>
<output>145</output>

<gadget id="calculator">145 + 25</gadget>
<output>170</output>

<result>170</result>