A piece of wool is 140 yuan, and with the money bought for 7 sweaters, you can buy 5 coats, leaving 30 yuan. How much is each coat?
一件毛140元，拿买7件毛衣的钱可以买5件大衣，还剩30元．每件大衣多少钱？
<gadget id="calculator">140 * 7</gadget>
<output>980</output>

<gadget id="calculator">980 - 30</gadget>
<output>950</output>

<gadget id="calculator">950 / 5</gadget>
<output>190</output>

<result>190</result>