There are two cotton fields, A and B, with an average yield of 185 catties per mu. The average yield of cotton in 5 mu of field A is 203 catties, and the average yield of field B is 170 catties per mu. How many acres is farm B? Answer how many acres.
甲、乙两块棉田，平均亩产185斤，甲田5亩平均产棉203斤，乙田平均亩产170斤，问乙田多少亩？答多少亩．
<gadget id="calculator">5 * 203</gadget>
<output>1_015</output>

<gadget id="calculator">5 * 185</gadget>
<output>925</output>

<gadget id="calculator">1_015 - 925</gadget>
<output>90</output>

<gadget id="calculator">185 - 170</gadget>
<output>15</output>

<gadget id="calculator">90 / 15</gadget>
<output>6</output>

<result>6</result>