A school buys three types of balls, among which basketballs account for 1/3 of the total, the ratio of footballs to the other two types of balls is 1:5, and there are 150 volleyballs. Find the total number of three balls.
某校购进三种球，其中篮球占总数的(1/3)，足球与其他两种球个数的比是l：5，排球有150个．求三种球的总数．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 + 5</gadget>
<output>6</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (1/3) - (1/6)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">150 / (1/2)</gadget>
<output>300</output>

<result>300</result>