The weight of the gold-silver alloy is 250 grams. When weighed in water, the weight is reduced by 16 grams. It is known that the weight of gold is reduced (1/19) in water, and the weight of silver is reduced (1/10) in water. This piece How many grams of gold is in the alloy.
金银合金的重量是250克，放在水中称重时，重量减轻了16克，已知金在水中称重量减轻(1/19)，银在水中称重量减轻(1/10)，这块合金中含金多少克．
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">250 * (1/10)</gadget>
<output>25</output>

<gadget id="calculator">25 - 16</gadget>
<output>9</output>

<gadget id="calculator">1 / 19</gadget>
<output>1/19 = around 0.052632</output>

<gadget id="calculator">(1/10) - (1/19)</gadget>
<output>9/190 = around 0.047368</output>

<gadget id="calculator">9 / (9/190)</gadget>
<output>190</output>

<result>190</result>