Grandma Wang's newsstand sells weekly and evening papers. The newsstand earned a total of 230 yuan yesterday. Among them, 85 weekly newspapers were sold at 1.5 yuan each, and each evening newspaper was 0.5 yuan. Do you know how many evening papers Grandma Wang sold yesterday?
王奶奶的报摊卖周报和晚报．昨天报摊共收入230元．其中卖出85份周报，每份1.5元，晚报每份0.5元．你知道王奶奶昨天共卖出多少份晚报吗？
<gadget id="calculator">1.5 * 85</gadget>
<output>127.5</output>

<gadget id="calculator">230 - 127.5</gadget>
<output>102.5</output>

<gadget id="calculator">102.5 / 0.5</gadget>
<output>205</output>

<result>205</result>