Mingzhi School originally had 720 students. The number of students transferred at the beginning of this semester is equivalent to (1/20) the number of boys. At this time, the school has 18 more students than before. How many boys were there in this school?
名智学校原有学生720人，本学期初转进的学生人数相当于原来男生人数的(1/20)，这时全校比原来多了18人，这个学校原来有男生多少人？
<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">18 / (1/20)</gadget>
<output>360</output>

<result>360</result>