Three people, A, B, and C, produce a batch of toys. The number produced by A is the sum of the numbers produced by B and C (1/2), and the number produced by B is the sum of the numbers produced by A and C. And (1/3), C produced 40. How many toys are there in total?
甲、乙、丙三个人生产一批玩具，甲生产的个数是乙、丙两人生产个数之和的(1/2)，乙生产的个数是甲、丙两人生产个数之和的(1/3)，丙生产了40个．这批玩具共有多少个．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/3) - (1/4)</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">40 / (5/12)</gadget>
<output>96</output>

<result>96</result>