In a class, there were 13 female students. There were three times as many male students in this class. How many students were in the class?
There were 13 * 3 = 
<gadget id="calculator">13*3</gadget>
<output>39</output>
39 male students in the class.
In total the class had 39 students + 13 students = 
<gadget id="calculator">39+13</gadget>
<output>52</output>
52 students.

<result>52</result>