A salt farm uses 200 grams of seawater to dry 6 grams of salt. If 8,400 tons of seawater are put into a salt field at a time, how many tons of salt can be produced? (Solve with ratio)
一个晒盐场用200克海水晒出6克盐．如果一块盐场一次放入8400吨海水，可晒出多少吨盐？(用比例解)
<gadget id="calculator">8_400 * 6</gadget>
<output>50_400</output>

<gadget id="calculator">50_400 / 200</gadget>
<output>252</output>

<result>252</result>