There are 15 more boys than girls on the playground, and 75% of boys are 20 more than girls (2/3). How many students are there in the playground?
操场上男生比女生多15人，其中男生的75%比女生的(2/3)还多20人，操场上共有学生多少人？
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">15 * (3/4)</gadget>
<output>45/4 = around 11.25</output>

<gadget id="calculator">20 - (45/4)</gadget>
<output>35/4 = around 8.75</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(3/4) - (2/3)</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(35/4) / (1/12)</gadget>
<output>105</output>

<gadget id="calculator">105 + 15 + 105</gadget>
<output>225</output>

<result>225</result>