The school buys footballs, basketballs and volleyballs. The footballs bought are 2/3 of the total, 35 more than basketballs. The ratio of basketballs and volleyballs bought is 3:2. How many balls of the three kinds did the school buy?
学校买来足球、篮球和排球，买来的足球是总数的(2/3)，比篮球多35个，买来篮球和排球的比是3：2，学校买来三种球共多少个．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 - (2/3)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(1/3) * (3/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(2/3) - (1/5)</gadget>
<output>7/15 = around 0.466667</output>

<gadget id="calculator">35 / (7/15)</gadget>
<output>75</output>

<result>75</result>