The ratio of female employees to male employees in the S city bus company is 4:5. Due to work needs, another 30 female employees are hired, and the number of female employees is 10% more than that of male employees. How many male employees does this bus company have?
S市公交公司的女职工与男职工的比是4：5，因工作需要，又聘用了30名女职工，这时女职工人数比男职工多10%．这个公交公司有男职工多少人？
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(1/10) - (4/5)</gadget>
<output>-7/10 = around -0.7</output>

<gadget id="calculator">1 + (-7/10)</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">30 / (3/10)</gadget>
<output>100</output>

<result>100</result>