Tintin's money can buy 5 doraemons with a unit price of 12 yuan. If you buy a tumbler, you can buy 6. How much is the average tumbler?
丁丁的钱可以买5个单价为12元的机器猫，如果买不倒翁，可以买6个．不倒翁平均每个是多少元？
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">12 * (5/6)</gadget>
<output>10</output>

<result>10</result>