The school auditorium has 4 rows of seats. There are 18 seats in each row. One-fourth of the seats were occupied by the administrators. One-third of the remaining seats were occupied by the parents and the rest were occupied by the students. How many students were there in the school auditorium?
There are 4 x 18 = 
<gadget id="calculator">4*18</gadget>
<output>72</output>
72 seats in the school auditorium.
72 x1/4 = 
<gadget id="calculator">72*1/4</gadget>
<output>18</output>
18 seats were occupied by the administrators.
There were 72 - 18 = 
<gadget id="calculator">72-18</gadget>
<output>54</output>
54 seats not occupied by the administrators.
54 x 1/3 = 
<gadget id="calculator">54*1/3</gadget>
<output>18</output>
18 seats were occupied by the parents.
So, 54 - 18 = 
<gadget id="calculator">54-18</gadget>
<output>36</output>
36 seats were occupied by the students.

<result>36</result>