There are 150 boys in the sixth grade of a certain elementary school, and the ratio of the number of girls to boys is 4:5. It is known that the number of students in the sixth grade accounts for 25% of the total number of students in the school. How many students are there in the school?
某小学六年级有男生150人，女生人数与男生的比是4：5，已知六年级人数占全校学生人数的25%．全校有多少名学生？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">150 * (4/5)</gadget>
<output>120</output>

<gadget id="calculator">120 + 150</gadget>
<output>270</output>

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">270 / (1/4)</gadget>
<output>1_080</output>

<result>1_080</result>